Triphase riboswitch.html

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-
 
-
<body lang=ZH-CN style='tab-interval:21.0pt;text-justify-trim:punctuation'>
 
-
 
-
<div class=WordSection1 style='layout-grid:15.6pt'>
 
-
 
-
<h1><span lang=EN-US>Introduction</span></h1>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>What is the disadvantage of a common <span
 
-
class=SpellE>biphase</span> <span class=SpellE>riboswitch</span>? And why we
 
-
want to purpose a novel design principle based on the idea of a <span
 
-
class=SpellE>triphase</span> <span class=SpellE>riboswitch</span>?</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Here we compared the general model of the <span
 
-
class=SpellE>biphase</span> and <span class=SpellE>triphase</span> <span
 
-
class=SpellE>riboswitch</span>, to demonstrate the differences.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>We started with a <a name="OLE_LINK2"></a><a
 
-
name="OLE_LINK1"><span style='mso-bookmark:OLE_LINK2'>coarse-grained</span></a>
 
-
description of the <span class=SpellE>riboswitch</span> function (Figure 1A,
 
-
1B) in order to construct a model to yield a detailed relationship between the
 
-
ligand concentration (L) and protein levels (P). In this diagram, only the dominant
 
-
conformations calculated, and the noise is neglected. In the general model, the
 
-
three major mechanisms were considered: translational repression, transcriptional
 
-
termination and the mRNA degradation. And to simplify the model, we only
 
-
considered the <a name="OLE_LINK4"></a><a name="OLE_LINK3"><span
 
-
style='mso-bookmark:OLE_LINK4'>thermodynamically </span></a>driven regime
 
-
(Chase L. <span class=SpellE>Beisel</span>, Christina D. <span class=SpellE>Smolke</span>,
 
-
2009) of the model, in which all the conformational changes are reversible. </span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shapetype
 
-
id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t"
 
-
path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">
 
-
<v:stroke joinstyle="miter"/>
 
-
<v:formulas>
 
-
  <v:f eqn="if lineDrawn pixelLineWidth 0"/>
 
-
  <v:f eqn="sum @0 1 0"/>
 
-
  <v:f eqn="sum 0 0 @1"/>
 
-
  <v:f eqn="prod @2 1 2"/>
 
-
  <v:f eqn="prod @3 21600 pixelWidth"/>
 
-
  <v:f eqn="prod @3 21600 pixelHeight"/>
 
-
  <v:f eqn="sum @0 0 1"/>
 
-
  <v:f eqn="prod @6 1 2"/>
 
-
  <v:f eqn="prod @7 21600 pixelWidth"/>
 
-
  <v:f eqn="sum @8 21600 0"/>
 
-
  <v:f eqn="prod @7 21600 pixelHeight"/>
 
-
  <v:f eqn="sum @10 21600 0"/>
 
-
</v:formulas>
 
-
<v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/>
 
-
<o:lock v:ext="edit" aspectratio="t"/>
 
-
</v:shapetype><v:shape id="_x56fe__x7247__x0020_13" o:spid="_x0000_i1037"
 
-
type="#_x0000_t75" alt="˵Ã÷: Macintosh HD:Users:cxhe:¿ìÅÌ:Lab:Project Design:wiki writing:8 Modeling:General Principle of Triphase Riboswitch:Figures:Ë«ÎÈ̬.jpg"
 
-
style='width:415pt;height:341pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image001.jpg" o:title="Ë«ÎÈ̬.jpg"/>
 
-
</v:shape><![endif]--><![if !vml]><img width=417 height=343
 
-
src="http://new87.guangstreet.com/img/triphase.files/image002.png"
 
-
alt="˵Ã÷: Macintosh HD:Users:cxhe:¿ìÅÌ:Lab:Project Design:wiki writing:8 Modeling:General Principle of Triphase Riboswitch:Figures:Ë«ÎÈ̬.jpg"
 
-
v:shapes="_x56fe__x7247__x0020_13"><![endif]></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Figure 1A. The schematic diagram of <span
 
-
class=SpellE>biphase</span> <span class=SpellE>riboswitch</span></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
 
-
id="_x56fe__x7247__x0020_11" o:spid="_x0000_i1036" type="#_x0000_t75" alt="˵Ã÷: Macintosh HD:Users:cxhe:¿ìÅÌ:Lab:Project Design:wiki writing:8 Modeling:General Principle of Triphase Riboswitch:Figures:ÈýÎÈ̬.jpg"
 
-
style='width:414pt;height:491pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image003.jpg" o:title="ÈýÎÈ̬.jpg"/>
 
-
</v:shape><![endif]--><![if !vml]><img width=416 height=493
 
-
src="http://new87.guangstreet.com/img/triphase.files/image004.png"
 
-
alt="˵Ã÷: Macintosh HD:Users:cxhe:¿ìÅÌ:Lab:Project Design:wiki writing:8 Modeling:General Principle of Triphase Riboswitch:Figures:ÈýÎÈ̬.jpg"
 
-
v:shapes="_x56fe__x7247__x0020_11"><![endif]></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Figure 1B. The schematic diagram of <span
 
-
class=SpellE>triphase</span> <span class=SpellE>riboswitch</span></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<h1><span class=SpellE><span lang=EN-US>Biphase</span></span><span lang=EN-US> <span
 
-
class=SpellE>riboswitch</span> Model</span></h1>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>In a <span class=SpellE>biphase</span> <span
 
-
class=SpellE>riboswitch</span> model, the associated dose-response curve can be
 
-
approximately described by a single general solution that includes the distribution
 
-
constant K1 between the ligand-free conformation and ligand-binding
 
-
conformation, the <span class=SpellE>aptamer</span> association constant K2,
 
-
mRNA degradation rate constants (a1<span class=GramE>,a2</span>) and regulatory
 
-
activities of two conformations KA and KB (Figure 1A):</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMathPara><m:oMath><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>P</m:r></span><m:r><span>
 
-
  = </m:r></span></span></i><m:f><m:fPr><span style='font-family:"Cambria Math";
 
-
    mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
    font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>kf</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>ap</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KAK</m:r></span><m:r><span>1+</m:r></span><m:r><span>KB</m:r></span><m:r><span>(1+</m:r></span><m:r><span>K</m:r></span><m:r><span>2[</m:r></span><m:r><span>L</m:r></span><m:r><span>])</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>1+</m:r></span><m:r><span>a</m:r></span><m:r><span>2(1+</m:r></span><m:r><span>K</m:r></span><m:r><span>2[</m:r></span><m:r><span>L</m:r></span><m:r><span>])</m:r></span></span></i></m:den></m:f></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=178 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image005.png"></span><![endif]></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMathPara><m:oMath><m:d><m:dPr><m:begChr
 
-
    m:val="{"/><m:endChr m:val=""/><span style='font-family:"Cambria Math";
 
-
    mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
    font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><m:eqArr><m:eqArrPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:eqArrPr><m:e><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1=</m:r></span></span></i><m:f><m:fPr><span
 
-
        style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
        mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
        normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
        normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>[</m:r></span><m:r><span>A</m:r></span><m:r><span>]</m:r></span></span></i></m:num><m:den><i
 
-
        style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
        "Cambria Math"'><m:r><span>[</m:r></span><m:r><span>B</m:r></span><m:r><span>]</m:r></span></span></i></m:den></m:f></m:e><m:e><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2=</m:r></span></span></i><m:f><m:fPr><span
 
-
        style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
        mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
        normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
        normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>[</m:r></span><m:r><span>CL</m:r></span><m:r><span>]</m:r></span></span></i></m:num><m:den><m:d><m:dPr><m:begChr
 
-
          m:val="["/><m:endChr m:val="]"/><span style='font-family:"Cambria Math";
 
-
          mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
          font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><i
 
-
          style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
          "Cambria Math"'><m:r><span>C</m:r></span></span></i></m:e></m:d><i
 
-
        style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
        "Cambria Math"'><m:r><span>[</m:r></span><m:r><span>L</m:r></span><m:r><span>]</m:r></span></span></i></m:den></m:f></m:e></m:eqArr></m:e></m:d></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=72 height=80 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image006.png"></span><![endif]></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Parameter variation effects are unique on
 
-
the dose-response curve for either ON (when KA/a1&lt;KB/a2) or OFF (when
 
-
KA/a2&gt;KB/a1)<a style='mso-endnote-id:edn1' href="#_edn1" name="_ednref1"
 
-
title=""><span class=MsoEndnoteReference><span style='mso-special-character:
 
-
footnote'><![if !supportFootnotes]><span class=MsoEndnoteReference><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'>[i]</span></span><![endif]></span></span></a> behaviors.
 
-
</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Here we list the function of performance
 
-
descriptors based on the general solution in the condition of the ON behavior:</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l1 level1 lfo1'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>Basal expression level</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMathPara><m:oMath><span lang=EN-US
 
-
  style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr m:val="roman"/><m:sty
 
-
    m:val="p"/></m:rPr>P</m:r></span></span><m:d><m:dPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math"'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><span
 
-
    lang=EN-US style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr
 
-
      m:val="roman"/><m:sty m:val="p"/></m:rPr>L=0</m:r></span></span></m:e></m:d><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=
 
-
  </m:r></span></span></i><m:f><m:fPr><span style='font-family:"Cambria Math";
 
-
    mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
    font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><span
 
-
    lang=EN-US style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr
 
-
      m:val="roman"/><m:sty m:val="p"/></m:rPr>kf</m:r></span></span></m:num><m:den><span
 
-
    lang=EN-US style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr
 
-
      m:val="roman"/><m:sty m:val="p"/></m:rPr>ap</m:r></span></span></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KAK</m:r></span><m:r><span>1+</m:r></span><m:r><span>KB</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>1+</m:r></span><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:den></m:f></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=151 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image007.png"></span><![endif]></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l1 level1 lfo1'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>Highest expression level</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMathPara><m:oMath><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>P</m:r></span></span></i><m:d><m:dPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>L</m:r></span></span></i><i
 
-
    style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
    "Cambria Math";mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
    mso-hansi-font-family:"Cambria Math"'><m:r><span>¡ú</m:r></span></span></i><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>¡Þ</m:r></span></span></i></m:e></m:d><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>kfKB</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>apa</m:r></span><m:r><span>2</m:r></span></span></i></m:den></m:f></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=99 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image008.png"></span><![endif]></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l1 level1 lfo1'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>Dynamic range (shown as ratio)</span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMathPara><m:oMath><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Ç</m:r></span><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>1+</m:r></span><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>KAK</m:r></span><m:r><span>1+</m:r></span><m:r><span>KB</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KB</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1+</m:r></span><m:r><span>KA</m:r></span><m:r><span>/</m:r></span><m:r><span>KB</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1+</m:r></span><m:r><span>a</m:r></span><m:r><span>1/</m:r></span><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:den></m:f></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=197 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image009.png"></span><![endif]></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l1 level1 lfo1'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>EC50</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMathPara><m:oMath><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>EC</m:r></span><m:r><span>50=</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>1+</m:r></span><m:r><span>K</m:r></span><m:r><span>1*</m:r></span></span></i><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:den></m:f></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:den></m:f></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=106 height=49 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image010.png"></span><![endif]></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Then we can make conclusions according to
 
-
the above equations. Stabilizing conformation A (increasing K1) will improve
 
-
the dynamic range by decreasing the basal level while holding highest level. The
 
-
affinity of ligand binding affects the EC50 and working range simultaneously,
 
-
but the dynamic range remains unchanged (CL <span class=SpellE>Beisel</span>,
 
-
CD <span class=SpellE>Smolke</span>. 2009).</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>The highest level is a function of <span
 
-
class=SpellE>kf</span>, KB, <span class=SpellE>ap</span> and a2, which is only
 
-
related with the conformation B and have nothing to do with the conformation A.
 
-
We can improve the dynamic range by raising K1 or a1. Generally speaking, it is
 
-
difficult for us to alter a1 and easier to manipulate K1. That¡¯s why we tend to
 
-
change K1 by directed point mutations. However, the problem arises when K1
 
-
approaches to infinity that the dynamic range tends to a fixed constant.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<h1><span class=SpellE><span lang=EN-US>Triphase</span></span><span lang=EN-US>
 
-
<span class=SpellE>Riboswitch</span> Model</span></h1>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Similarly, when we consider the circumstance
 
-
that a <span class=SpellE>riboswitch</span> has three possible stable conformations,
 
-
the dose-response curve can be described by a single equation as well, containing
 
-
distribution constants K1<span class=GramE>,K2,K3</span>, ligand association
 
-
constant K4, mRNA degradation constant a1, a2, a3 and regulatory activities of
 
-
three conformations KA,KB,KC (Figure 1B).</span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMathPara><m:oMath><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>P</m:r></span><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>kf</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>ap</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KAK</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>KBK</m:r></span><m:r><span>2+</m:r></span><m:r><span>KCK</m:r></span><m:r><span>1(1+</m:r></span><m:r><span>K</m:r></span><m:r><span>4</m:r></span></span></i><m:d><m:dPr><m:begChr
 
-
      m:val="["/><m:endChr m:val="]"/><span style='font-family:"Cambria Math";
 
-
      mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
      font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>L</m:r></span></span></i></m:e></m:d><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>)</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>a</m:r></span><m:r><span>2</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>a</m:r></span><m:r><span>3</m:r></span><m:r><span>K</m:r></span><m:r><span>1(1+</m:r></span><m:r><span>K</m:r></span><m:r><span>4</m:r></span></span></i><m:d><m:dPr><m:begChr
 
-
      m:val="["/><m:endChr m:val="]"/><span style='font-family:"Cambria Math";
 
-
      mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
      font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>L</m:r></span></span></i></m:e></m:d><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>)</m:r></span></span></i></m:den></m:f></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=247 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image011.png"></span><![endif]></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMathPara><m:oMath><m:d><m:dPr><m:begChr
 
-
    m:val="{"/><m:endChr m:val=""/><span style='font-family:"Cambria Math";
 
-
    mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
    font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><m:eqArr><m:eqArrPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:eqArrPr><m:e><m:d><m:dPr><m:begChr
 
-
        m:val="{"/><m:endChr m:val=""/><span style='font-family:"Cambria Math";
 
-
        mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
        font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><m:eqArr><m:eqArrPr><span
 
-
          style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
          mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
          normal'><m:ctrlPr></m:ctrlPr></span></m:eqArrPr><m:e><i
 
-
          style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
          "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1=</m:r></span></span></i><m:f><m:fPr><span
 
-
            style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
            mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
            normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
            style='mso-bidi-font-style:normal'><span lang=EN-US
 
-
            style='font-family:"Cambria Math"'><m:r><span>A</m:r></span></span></i></m:num><m:den><i
 
-
            style='mso-bidi-font-style:normal'><span lang=EN-US
 
-
            style='font-family:"Cambria Math"'><m:r><span>B</m:r></span></span></i></m:den></m:f></m:e><m:e><i
 
-
          style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
          "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2=</m:r></span></span></i><m:f><m:fPr><span
 
-
            style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
            mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
            normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
            style='mso-bidi-font-style:normal'><span lang=EN-US
 
-
            style='font-family:"Cambria Math"'><m:r><span>A</m:r></span></span></i></m:num><m:den><i
 
-
            style='mso-bidi-font-style:normal'><span lang=EN-US
 
-
            style='font-family:"Cambria Math"'><m:r><span>C</m:r></span></span></i></m:den></m:f></m:e><m:e><i
 
-
          style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
          "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>3=</m:r></span></span></i><m:f><m:fPr><span
 
-
            style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
            mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
            normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
            style='mso-bidi-font-style:normal'><span lang=EN-US
 
-
            style='font-family:"Cambria Math"'><m:r><span>B</m:r></span></span></i></m:num><m:den><i
 
-
            style='mso-bidi-font-style:normal'><span lang=EN-US
 
-
            style='font-family:"Cambria Math"'><m:r><span>C</m:r></span></span></i></m:den></m:f><i
 
-
          style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
          "Cambria Math"'><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
            style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
            mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
            normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
            style='mso-bidi-font-style:normal'><span lang=EN-US
 
-
            style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
            style='mso-bidi-font-style:normal'><span lang=EN-US
 
-
            style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:den></m:f></m:e></m:eqArr></m:e></m:d></m:e><m:e><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>4=</m:r></span></span></i><m:f><m:fPr><span
 
-
        style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
        mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
        normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
        normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>[</m:r></span><m:r><span>CL</m:r></span><m:r><span>]</m:r></span></span></i></m:num><m:den><m:d><m:dPr><m:begChr
 
-
          m:val="["/><m:endChr m:val="]"/><span style='font-family:"Cambria Math";
 
-
          mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
          font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><i
 
-
          style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
          "Cambria Math"'><m:r><span>C</m:r></span></span></i></m:e></m:d><i
 
-
        style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
        "Cambria Math"'><m:r><span>[</m:r></span><m:r><span>L</m:r></span><m:r><span>]</m:r></span></span></i></m:den></m:f></m:e></m:eqArr></m:e></m:d></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=88 height=127 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image012.png"></span><![endif]></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Parameter variation effects are unique on
 
-
the dose-response curve for either ON (when KA/a1&lt;KC/a3, KB/a2&lt;KC/a3) or
 
-
OFF (when KA/a1&gt;KC/a3<span class=GramE>,KB</span>/a2&gt;KC/a3) behaviors. </span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>To describe the performance of the <span
 
-
class=SpellE>riboswitch</span>, we discuss the basal and highest level of expression,
 
-
dynamic range and EC50 as well.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l0 level1 lfo2'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>Basal expression level</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMathPara><m:oMath><span lang=EN-US
 
-
  style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr m:val="roman"/><m:sty
 
-
    m:val="p"/></m:rPr>P</m:r></span></span><m:d><m:dPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math"'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><span
 
-
    lang=EN-US style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr
 
-
      m:val="roman"/><m:sty m:val="p"/></m:rPr>L=0</m:r></span></span></m:e></m:d><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=
 
-
  </m:r></span></span></i><m:f><m:fPr><span style='font-family:"Cambria Math";
 
-
    mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
    font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><span
 
-
    lang=EN-US style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr
 
-
      m:val="roman"/><m:sty m:val="p"/></m:rPr>kf</m:r></span></span></m:num><m:den><span
 
-
    lang=EN-US style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr
 
-
      m:val="roman"/><m:sty m:val="p"/></m:rPr>ap</m:r></span></span></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KAK</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>KBK</m:r></span><m:r><span>2+</m:r></span><m:r><span>KCK</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>a</m:r></span><m:r><span>2</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>a</m:r></span><m:r><span>3</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span></span></i></m:den></m:f></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=226 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image013.png"></span><![endif]></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l0 level1 lfo2'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>Highest expression level</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMathPara><m:oMath><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>P</m:r></span></span></i><m:d><m:dPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>L</m:r></span></span></i><i
 
-
    style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
    "Cambria Math";mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
    mso-hansi-font-family:"Cambria Math"'><m:r><span>¡ú</m:r></span></span></i><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>¡Þ</m:r></span></span></i></m:e></m:d><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>kfKC</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>apa</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=98 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image014.png"></span><![endif]></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l0 level1 lfo2'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>Dynamic range (shown as ratio)</span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMathPara><m:oMath><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Ç</m:r></span><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>a</m:r></span><m:r><span>2</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>a</m:r></span><m:r><span>3</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>KAK</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>KBK</m:r></span><m:r><span>2+</m:r></span><m:r><span>KCK</m:r></span><m:r><span>1</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span></span></i><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KA</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span></span></i><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KB</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span></span></i></m:den></m:f></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=329 height=64 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image015.png"></span><![endif]></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l0 level1 lfo2'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>EC50</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMathPara><m:oMath><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>EC</m:r></span><m:r><span>50=</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>1+</m:r></span></span></i><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span></span></i></m:den></m:f><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>+</m:r></span></span></i><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>*</m:r></span><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>K</m:r></span><m:r><span>4</m:r></span></span></i></m:den></m:f></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=149 height=49 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image016.png"></span><![endif]></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Then we can make conclusions according to
 
-
the above equations. Stabilizing either conformation A (increasing K1) or
 
-
conformation B (increasing K2) will improves the dynamic range by decreasing
 
-
the basal level while holding highest level (Figure 2). The affinity of ligand
 
-
binding affects the EC50 and working range simultaneously, while the dynamic
 
-
range remains unchanged.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
 
-
id="_x56fe__x7247__x0020_2" o:spid="_x0000_i1035" type="#_x0000_t75" style='width:416pt;
 
-
height:199pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image017.emz" o:title=""/>
 
-
</v:shape><![endif]--><![if !vml]><img width=418 height=201
 
-
src="http://new87.guangstreet.com/img/triphase.files/image018.png" v:shapes="_x56fe__x7247__x0020_2"><![endif]></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Figure 2. K1 or K2 increasing improves the
 
-
dynamic range of <span class=SpellE>triphase</span> <span class=SpellE>riboswich</span>,
 
-
consistent with the modeling of <span class=SpellE>biphase</span> <span
 
-
class=SpellE>riboswich</span>.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<h1><span lang=EN-US>Comparison between <span class=SpellE>triphase</span> and <span
 
-
class=SpellE>biphase</span> on four main performance descriptors</span></h1>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Usually, the <span class=SpellE>triphase</span>
 
-
<span class=SpellE>riboswitch</span> we design is a fuse of a competitive
 
-
sequence and <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span>
 
-
we already have. As a result, approximately, the Gibbs free energy difference
 
-
between the conformation A and ligand-combination conformation C is constant,
 
-
which means that the K1 stays constant. And the mRNA decay of conformation A
 
-
and C is also the same, indicating the same a1 and a3. Of course the changing
 
-
of ligand binding association constant caused by the <span class=SpellE>cis</span>
 
-
influence can be neglect as well. Therefore, the only difference between <span
 
-
class=SpellE>triphase</span> <span class=SpellE>riboswitch</span> and <span
 
-
class=SpellE>biphase</span> <span class=SpellE>riboswitch</span> is the
 
-
influence from conformation B.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Here we will discuss the four main performance
 
-
descriptors and see if there is any difference between the <span class=SpellE>triphase</span>
 
-
and <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span>.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Hereafter, we will discuss the modeling
 
-
with ON behavior <span class=SpellE>riboswitch</span> under three different conditions</span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMath><m:d><m:dPr><m:begChr
 
-
    m:val="{"/><m:endChr m:val=""/><span style='font-family:"Cambria Math";
 
-
  mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
  font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><m:eqArr><m:eqArrPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:eqArrPr><m:e><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>conformation</m:r></span><m:r><span>
 
-
      </m:r></span><m:r><span>B</m:r></span><m:r><span> </m:r></span><m:r><span>dominant</m:r></span><m:r><span>(</m:r></span><m:r><span>Bd</m:r></span><m:r><span>
 
-
      </m:r></span><m:r><span>for</m:r></span><m:r><span> </m:r></span><m:r><span>s</m:r></span><m:r><span>h</m:r></span><m:r><span>ort</m:r></span><m:r><span>)
 
-
      ,</m:r></span></span></i><m:f><m:fPr><span style='font-family:"Cambria Math";
 
-
      mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
      font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>KB</m:r></span></span></i></m:den></m:f><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>&gt;</m:r></span></span></i><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>KA</m:r></span></span></i></m:den></m:f></m:e><m:e><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>balance</m:r></span></span></i><m:d><m:dPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>bal</m:r></span><m:r><span>
 
-
        </m:r></span><m:r><span>for</m:r></span><m:r><span> </m:r></span><m:r><span>s</m:r></span><m:r><span>h</m:r></span><m:r><span>ort</m:r></span></span></i></m:e></m:d><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>, </m:r></span></span></i><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>KB</m:r></span></span></i></m:den></m:f><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>KA</m:r></span></span></i></m:den></m:f></m:e><m:e><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>conformation</m:r></span><m:r><span> </m:r></span><m:r><span>A</m:r></span><m:r><span>
 
-
      </m:r></span><m:r><span>dominant</m:r></span></span></i><m:d><m:dPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>Ad</m:r></span><m:r><span>
 
-
        </m:r></span><m:r><span>for</m:r></span><m:r><span> </m:r></span><m:r><span>s</m:r></span><m:r><span>h</m:r></span><m:r><span>ort</m:r></span></span></i></m:e></m:d><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>,</m:r></span></span></i><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>KB</m:r></span></span></i></m:den></m:f><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>&lt;</m:r></span></span></i><m:f><m:fPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>KA</m:r></span></span></i></m:den></m:f></m:e></m:eqArr></m:e></m:d></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:34.0pt;mso-text-raise:
 
-
-34.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=278 height=80 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image019.png"></span><![endif]><span lang=EN-US>;</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>And it will be also always true that:</span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMathPara><m:oMath><m:d><m:dPr><m:begChr
 
-
    m:val="{"/><m:endChr m:val=""/><span style='font-family:"Cambria Math";
 
-
    mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
    font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><m:eqArr><m:eqArrPr><span
 
-
      style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
      mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
      normal'><m:ctrlPr></m:ctrlPr></span></m:eqArrPr><m:e><i style='mso-bidi-font-style:
 
-
      normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KA</m:r></span><m:r><span>/</m:r></span><m:r><span>a</m:r></span><m:r><span>1&lt;</m:r></span><m:r><span>KC</m:r></span><m:r><span>/</m:r></span><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:e><m:e><i
 
-
      style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
      "Cambria Math"'><m:r><span>KB</m:r></span><m:r><span>/</m:r></span><m:r><span>a</m:r></span><m:r><span>2&lt;</m:r></span><m:r><span>KC</m:r></span><m:r><span>/</m:r></span><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:e></m:eqArr></m:e></m:d></m:oMath></m:oMathPara><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'><img width=93 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image020.png"></span><![endif]></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l2 level1 lfo3'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>Basal level expression</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMath><span lang=EN-US style='font-family:
 
-
"Cambria Math"'><m:r><span><m:rPr><m:scr m:val="roman"/><m:sty m:val="p"/></m:rPr>Ptriphase</m:r></span></span><m:d><m:dPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math"'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><span
 
-
  lang=EN-US style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr m:val="roman"/><m:sty
 
-
      m:val="p"/></m:rPr>L=0</m:r></span></span></m:e></m:d><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=
 
-
  </m:r></span></span></i><m:f><m:fPr><span style='font-family:"Cambria Math";
 
-
  mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
  font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><span
 
-
  lang=EN-US style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr m:val="roman"/><m:sty
 
-
      m:val="p"/></m:rPr>kf</m:r></span></span></m:num><m:den><span lang=EN-US
 
-
  style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr m:val="roman"/><m:sty
 
-
      m:val="p"/></m:rPr>ap</m:r></span></span></m:den></m:f><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1(</m:r></span><m:r><span>KAK</m:r></span><m:r><span>2+</m:r></span><m:r><span>KC</m:r></span><m:r><span>)+</m:r></span><m:r><span>KBK</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1(</m:r></span><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>a</m:r></span><m:r><span>3)+</m:r></span><m:r><span>a</m:r></span><m:r><span>2</m:r></span><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:12.0pt;mso-text-raise:
 
-
-12.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=217 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image021.png"></span><![endif]><span lang=EN-US>;</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMath><span lang=EN-US style='font-family:
 
-
"Cambria Math"'><m:r><span><m:rPr><m:scr m:val="roman"/><m:sty m:val="p"/></m:rPr>Pbiphase</m:r></span></span><m:d><m:dPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math"'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><span
 
-
  lang=EN-US style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr m:val="roman"/><m:sty
 
-
      m:val="p"/></m:rPr>L=0</m:r></span></span></m:e></m:d><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=
 
-
  </m:r></span></span></i><m:f><m:fPr><span style='font-family:"Cambria Math";
 
-
  mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
  font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><span
 
-
  lang=EN-US style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr m:val="roman"/><m:sty
 
-
      m:val="p"/></m:rPr>kf</m:r></span></span></m:num><m:den><span lang=EN-US
 
-
  style='font-family:"Cambria Math"'><m:r><span><m:rPr><m:scr m:val="roman"/><m:sty
 
-
      m:val="p"/></m:rPr>ap</m:r></span></span></m:den></m:f><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KAK</m:r></span><m:r><span>2+</m:r></span><m:r><span>KC</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>2+</m:r></span><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:12.0pt;mso-text-raise:
 
-
-12.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=168 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image022.png"></span><![endif]><span lang=EN-US>;</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><span lang=EN-US>It is obvious that <span class=SpellE>Ptriphase</span> will
 
-
always have a lower basal level under limited conditions of ON behaviors, <span
 
-
class=SpellE>Bd</span> pattern (Figure 3A), <span class=SpellE><span
 
-
class=GramE>bal</span></span> pattern and some of Ad pattern (Figure 3B).</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="_x56fe__x7247__x0020_10"
 
-
o:spid="_x0000_i1034" type="#_x0000_t75" style='width:416pt;height:199pt;
 
-
visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image023.emz" o:title=""/>
 
-
</v:shape><![endif]--><![if !vml]><img width=418 height=201
 
-
src="http://new87.guangstreet.com/img/triphase.files/image024.png" v:shapes="_x56fe__x7247__x0020_10"><![endif]></span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><span lang=EN-US>Figure 3A. With the dominant conformation B, <span
 
-
class=SpellE>triphase</span> <span class=SpellE>riboswitch</span> always have a
 
-
lower basal level than the <span class=SpellE>biphase</span> <span
 
-
class=SpellE>riboswitch</span>, with the changing K2. And the <span
 
-
class=SpellE>lowerlimit</span> of <span class=SpellE>triphase</span> <span
 
-
class=SpellE>riboswitch</span> is lower as well.</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="_x56fe__x7247__x0020_4"
 
-
o:spid="_x0000_i1033" type="#_x0000_t75" style='width:416pt;height:199pt;
 
-
visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image025.emz" o:title=""/>
 
-
</v:shape><![endif]--><![if !vml]><img width=418 height=201
 
-
src="http://new87.guangstreet.com/img/triphase.files/image026.png" v:shapes="_x56fe__x7247__x0020_4"><![endif]></span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><span lang=EN-US>Figure 3B. The dominant conformation B in <span
 
-
class=SpellE>triphase</span> <span class=SpellE>riboswich</span> is sufficient
 
-
but not necessary; even under some condition of Ad, <span class=SpellE>triphase</span>
 
-
still have a lower basal expression level.</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l2 level1 lfo3'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>Highest level expression</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:normal'><span
 
-
lang=EN-US style='font-family:"Cambria Math"'><m:r><span>Ptrip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span></span></i><m:d><m:dPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>L</m:r></span></span></i><i
 
-
  style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
  "Cambria Math";mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
  mso-hansi-font-family:"Cambria Math"'><m:r><span>¡ú</m:r></span></span></i><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¡Þ</m:r></span></span></i></m:e></m:d><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>kfKC</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>apa</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:12.0pt;mso-text-raise:
 
-
-12.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=137 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image027.png"></span><![endif]><span lang=EN-US>;</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:normal'><span
 
-
lang=EN-US style='font-family:"Cambria Math"'><m:r><span>Pbip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span></span></i><m:d><m:dPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>L</m:r></span></span></i><i
 
-
  style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
  "Cambria Math";mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
  mso-hansi-font-family:"Cambria Math"'><m:r><span>¡ú</m:r></span></span></i><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¡Þ</m:r></span></span></i></m:e></m:d><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>kfKC</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>apa</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:12.0pt;mso-text-raise:
 
-
-12.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=133 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image028.png"></span><![endif]><span lang=EN-US>;</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><span lang=EN-US>Therefore the highest level expression of both <span
 
-
class=SpellE>triphase</span> and <span class=SpellE>biphase</span> <span
 
-
class=SpellE>riboswitch</span> are the same. And the highest-level expression
 
-
is only related to the regulatory activity and decay rate of the ligand-binding
 
-
conformation C and the input (<span class=SpellE>kf</span>) and output (<span
 
-
class=SpellE>ap</span>) of the whole <span class=SpellE>riboswitch</span>
 
-
system.</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l2 level1 lfo3'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>Dynamic range (shown with
 
-
ratio)</span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:
 
-
normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Çtrip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1(</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2+1)+</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1(</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KA</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2+1)+</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KB</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:19.0pt;mso-text-raise:
 
-
-19.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=149 height=49 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image029.png"></span><![endif]><span lang=EN-US>;</span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:
 
-
normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Çbip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2+1</m:r></span></span></i></m:num><m:den><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KA</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2+1</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:19.0pt;mso-text-raise:
 
-
-19.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=99 height=49 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image030.png"></span><![endif]><span lang=EN-US>;</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>It is obvious that <span class=SpellE>triphase</span>
 
-
<span class=SpellE>riboswitch</span> will always have the higher dynamic range under
 
-
limited conditions of ON behaviors, B dominant.</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:-18.0pt;
 
-
mso-char-indent-count:0;mso-list:l2 level1 lfo3'><![if !supportLists]><span
 
-
lang=EN-US style='mso-fareast-font-family:Cambria;mso-fareast-theme-font:minor-latin;
 
-
mso-bidi-font-family:Cambria;mso-bidi-theme-font:minor-latin'><span
 
-
style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
 
-
</span></span></span><![endif]><span lang=EN-US>EC50</span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:
 
-
normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>EC</m:r></span><m:r><span>50</m:r></span><m:r><span>trip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>1+</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>+</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>4</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:8.0pt;mso-text-raise:-8.0pt;
 
-
mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA'><img
 
-
width=152 height=33 id="_x0000_i1025" src="http://new87.guangstreet.com/img/triphase.files/image031.png"></span><![endif]><span
 
-
lang=EN-US>=</span><!--[if gte msEquation 12]><m:oMath><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>1+</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span><m:r><span>K</m:r></span><m:r><span>3+</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>*</m:r></span><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>4</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:8.0pt;mso-text-raise:-8.0pt;
 
-
mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA'><img
 
-
width=67 height=33 id="_x0000_i1025" src="http://new87.guangstreet.com/img/triphase.files/image032.png"></span><![endif]><span
 
-
lang=EN-US>;</span></p>
 
-
 
-
<p class=MsoListParagraph style='margin-left:18.0pt;text-indent:0cm;mso-char-indent-count:
 
-
0'><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:normal'><span
 
-
lang=EN-US style='font-family:"Cambria Math"'><m:r><span>EC</m:r></span><m:r><span>50</m:r></span><m:r><span>bip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>1+</m:r></span><m:r><span>K</m:r></span><m:r><span>2*</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>4</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:8.0pt;mso-text-raise:-8.0pt;
 
-
mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA'><img
 
-
width=123 height=33 id="_x0000_i1025" src="http://new87.guangstreet.com/img/triphase.files/image033.png"></span><![endif]><span
 
-
lang=EN-US>;</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>It is obvious that EC50triphase is always
 
-
larger than EC50biphase (Figure 3C). If a <span class=SpellE>biphase</span> <span
 
-
class=SpellE>riboswitch</span> with a constant K2¡¯ has the identical EC50 with
 
-
the <span class=SpellE>triphase</span> one, then<span class=GramE>:</span></span><!--[if gte msEquation 12]><m:oMath><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math"'><m:r><span><span
 
-
  lang=EN-US>K</span></m:r></span><span class=GramE><m:r><span><span
 
-
  lang=EN-US>2</span></m:r></span></span><m:r><span><span lang=EN-US>'=</span></m:r></span><m:r><span><span
 
-
  lang=EN-US>K</span></m:r></span><m:r><span><span lang=EN-US>2(1+</span></m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span></span></i></m:den></m:f><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>)</m:r></span></span></i></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:11.0pt;mso-text-raise:
 
-
-11.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=103 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image034.png"></span><![endif]></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>And then the ratio between the dynamic
 
-
range of <span class=SpellE>triphase</span> <span class=SpellE>riboswitch</span>
 
-
and the new <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span>
 
-
will be:</span><!--[if gte msEquation 12]><m:oMath><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Çtrip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Çbip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span></span></i></m:den></m:f><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1(</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KA</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2+1)+</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span><m:r><span>KA</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1(</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KA</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2+1)+</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KB</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i></m:den></m:f><m:d><m:dPr><m:begChr
 
-
    m:val="{"/><m:endChr m:val=""/><span style='font-family:"Cambria Math";
 
-
  mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
  font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><m:eqArr><m:eqArrPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:eqArrPr><m:e><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>&gt;1,
 
-
      </m:r></span><m:r><span>Bd</m:r></span></span></i></m:e><m:e><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>=1,</m:r></span><m:r><span>bal</m:r></span></span></i></m:e><m:e><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>&lt;1,</m:r></span><m:r><span>Ad</m:r></span></span></i></m:e></m:eqArr></m:e></m:d></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:19.0pt;mso-text-raise:
 
-
-19.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=194 height=49 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image035.png"></span><![endif]><span lang=EN-US><span
 
-
style="mso-spacerun:yes">&nbsp;</span>(Figure 3D)</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
 
-
id="_x56fe__x7247__x0020_8" o:spid="_x0000_i1032" type="#_x0000_t75" style='width:416pt;
 
-
height:199pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image036.emz" o:title=""/>
 
-
</v:shape><![endif]--><![if !vml]><img width=418 height=201
 
-
src="http://new87.guangstreet.com/img/triphase.files/image037.png" v:shapes="_x56fe__x7247__x0020_8"><![endif]></span><span
 
-
lang=EN-US><span style="mso-spacerun:yes">&nbsp;</span></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Figure 3C. The <span class=SpellE>triphase</span>
 
-
<span class=SpellE>riboswich</span> always have a higher EC50 value.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
 
-
id="_x56fe__x7247__x0020_9" o:spid="_x0000_i1031" type="#_x0000_t75" style='width:416pt;
 
-
height:199pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image038.emz" o:title=""/>
 
-
</v:shape><![endif]--><![if !vml]><img width=418 height=201
 
-
src="http://new87.guangstreet.com/img/triphase.files/image039.png" v:shapes="_x56fe__x7247__x0020_9"><![endif]></span></p>
 
-
 
-
<p class=MsoNormal><span class=GramE><span lang=EN-US>Figure 3D.</span></span><span
 
-
lang=EN-US> However, the loss on EC50 can be compensated by much higher dynamic
 
-
range in a B dominant pattern, therefore resulting in a higher profit and loss
 
-
ratio. The product by multiplying Dynamic range and EC50 is almost constant in
 
-
a <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span> but
 
-
sensitive to K2 in a <span class=SpellE>triphase</span> <span class=SpellE>riboswitch</span>.
 
-
And that product in a <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span>
 
-
is always lower than that in a <span class=SpellE>triphase</span> <span
 
-
class=SpellE>riboswitch</span>.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<h1><span lang=EN-US>The <span class=SpellE>triphase</span> design is more
 
-
feasible than <span class=SpellE>mutgenesis</span></span></h1>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Heretofore, we have discussed the
 
-
difference between <span class=SpellE>triphase</span> and <span class=SpellE>biphase</span>
 
-
<span class=SpellE>riboswitch</span> on the four main performance descriptors.
 
-
Nevertheless, though the advantages of <span class=SpellE>triphase</span> <span
 
-
class=SpellE>riboswitches</span> have been shown, there is no evidence to
 
-
support that it is necessary to apply the <span class=SpellE>triphase</span> <span
 
-
class=SpellE>riboswitch</span>. In other word, if there is any alternative
 
-
method?</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>What about the traditional way?</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'>Since
 
-
usually it is hard and hazardous to change KA and KC, changing mRNA degradation
 
-
need to add conformation-<span class=SpellE>controled</span> ribozyme cleavage
 
-
sites which is difficult, and the <span class=SpellE>¦Çbiphase</span> is also
 
-
the function of K2, therefore it seems to be a good strategy to increase K2 by
 
-
probable site-directed mutagenesis, which is what we used to do.<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'>However,
 
-
it only allows few options (in the case of <span class=SpellE>ALeader</span>,
 
-
only 2^4 =16 options), and most of mutations are not useful, resulting in the
 
-
failure of function; consequently, we prefer to the <span class=SpellE>triphase</span>
 
-
switch, which provides millions of choices for engineering, (because we are
 
-
adding not changing the sequence)<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'>In brief
 
-
compared with mutagenesis, the <span class=SpellE>triphase</span> design is much
 
-
more easily programming, with more options and more success rate.<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<h1><span lang=EN-US>The <span class=SpellE>triphase</span> design can change
 
-
the <span class=SpellE>upperlimit</span> of dynamic range</span></h1>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'>However,
 
-
for fastidious conservative, it may still not sufficient to say <span
 
-
class=SpellE>triphase</span> <span class=SpellE>riboswitch</span> is not alternative.<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'>So, wh</span><span
 
-
lang=EN-US>at kind of breakthrough can <span class=SpellE>triphase</span> <span
 
-
class=SpellE>riboswitch</span> make but other methods cannot?</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>The answer is about the limitation of
 
-
dynamic range. </span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>It is known that there is an <span
 
-
class=SpellE>upperlimit</span> of <span class=SpellE>biphase</span> <span
 
-
class=SpellE>riboswitch</span>, and the <span class=SpellE>triphase</span>-switch
 
-
derived from <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span>
 
-
can break that barrier of limitation.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Here is the <span class=SpellE>riboswitch</span>
 
-
of </span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:
 
-
normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Çbip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>_</m:r></span><m:r><span>max</m:r></span><m:r><span>=</m:r></span><m:r><span>¦Çbip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>(</m:r></span><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-font-family:"Cambria Math"'><m:r><span>¡ú</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-hansi-font-family:"Cambria Math"'><m:r><span>¡Þ</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>)=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>KC</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span><m:r><span>KA</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:11.0pt;mso-text-raise:
 
-
-11.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=234 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image040.png"></span><![endif]><span lang=EN-US
 
-
style='mso-fareast-font-family:ËÎÌå'>;<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'>And in <span
 
-
class=SpellE>triphase</span> design, that value can be achieved by increasing
 
-
the K1 and K2 at the same time. Under this condition, the <span class=SpellE>triphase</span>
 
-
switch degenerate into a <span class=SpellE>biphase</span> switch in fact:<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:
 
-
normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Çtrip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>(</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-font-family:"Cambria Math"'><m:r><span>¡ú</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-hansi-font-family:"Cambria Math"'><m:r><span>¡Þ</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
mso-fareast-font-family:ËÎÌå'><m:r><span>,</m:r></span><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-font-family:"Cambria Math"'><m:r><span>¡ú</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-hansi-font-family:"Cambria Math"'><m:r><span>¡Þ</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>)=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span><m:r><span>KC</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span><m:r><span>KA</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:11.0pt;mso-text-raise:
 
-
-11.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=194 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image041.png"></span><![endif]><span lang=EN-US
 
-
style='mso-fareast-font-family:ËÎÌå'>;<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'>If only
 
-
trying to change the K2 in a <span class=SpellE>triphase</span> switch, we
 
-
found that:<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:
 
-
normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Çtrip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>(</m:r></span><m:r><span>K</m:r></span><m:r><span>2</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-font-family:"Cambria Math"'><m:r><span>¡ú</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-hansi-font-family:"Cambria Math"'><m:r><span>¡Þ</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
mso-fareast-font-family:ËÎÌå'><m:r><span>,</m:r></span><m:r><span>K</m:r></span><m:r><span>1=</m:r></span><m:r><span>const</m:r></span><m:r><span>.</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>)=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KC</m:r></span><m:r><span>(</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span><m:r><span>a</m:r></span><m:r><span>1+</m:r></span><m:r><span>a</m:r></span><m:r><span>2)</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3(</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span><m:r><span>KA</m:r></span><m:r><span>+</m:r></span><m:r><span>KB</m:r></span><m:r><span>)</m:r></span></span></i></m:den></m:f><m:d><m:dPr><m:begChr
 
-
    m:val="{"/><m:endChr m:val=""/><span style='font-family:"Cambria Math";
 
-
  mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
  font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><m:eqArr><m:eqArrPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:eqArrPr><m:e><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>&gt;</m:r></span><m:r><span>¦Çbip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>_</m:r></span><m:r><span>max</m:r></span><m:r><span>,</m:r></span><m:r><span>Bd</m:r></span></span></i></m:e><m:e><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>=</m:r></span><m:r><span>¦Çbip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>_</m:r></span><m:r><span>max</m:r></span><m:r><span>,</m:r></span><m:r><span>bal</m:r></span></span></i></m:e><m:e><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>&lt;</m:r></span><m:r><span>¦Çbip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>_</m:r></span><m:r><span>max</m:r></span><m:r><span>,</m:r></span><m:r><span>Ad</m:r></span></span></i></m:e></m:eqArr></m:e></m:d></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:19.0pt;mso-text-raise:
 
-
-19.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=368 height=49 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image042.png"></span><![endif]><span lang=EN-US
 
-
style='mso-fareast-font-family:ËÎÌå'>;<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'>Therefore
 
-
we can break the inherent barrier of dynamic range <span class=SpellE>upperlimit</span>
 
-
by adding the probable competitive sequence.<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'>That is
 
-
why we need to purpose this novel strategy.<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:ËÎÌå'>Actually,
 
-
the </span><span class=SpellE><span lang=EN-US style='font-family:Calibri;
 
-
mso-ascii-theme-font:major-latin;mso-fareast-font-family:ËÎÌå;mso-hansi-theme-font:
 
-
major-latin'>¦Çtriphase</span></span><span lang=EN-US style='font-family:Calibri;
 
-
mso-ascii-theme-font:major-latin;mso-fareast-font-family:ËÎÌå;mso-hansi-theme-font:
 
-
major-latin'> can be higher than the limitation of <span class=SpellE>¦Çbiphase</span>,
 
-
in this situation that:<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal style='line-height:200%'><!--[if gte msEquation 12]><m:oMath><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-hansi-font-family:"Cambria Math";
 
-
  mso-bidi-font-family:»ªÎÄ¿¬Ìå;font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
  mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>KB</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
  mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>KC</m:r></span></span></i></m:den></m:f><m:d><m:dPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-hansi-font-family:"Cambria Math";
 
-
  mso-bidi-font-family:»ªÎÄ¿¬Ìå;font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-hansi-font-family:"Cambria Math";
 
-
    mso-bidi-font-family:»ªÎÄ¿¬Ìå;font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math";mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math";mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>KB</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
  mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>-</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-hansi-font-family:"Cambria Math";
 
-
    mso-bidi-font-family:»ªÎÄ¿¬Ìå;font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math";mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math";mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>KA</m:r></span></span></i></m:den></m:f></m:e></m:d><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>&gt;</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-hansi-font-family:"Cambria Math";
 
-
  mso-bidi-font-family:»ªÎÄ¿¬Ìå;font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
  mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
  mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>K</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><m:d><m:dPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-hansi-font-family:"Cambria Math";
 
-
  mso-bidi-font-family:»ªÎÄ¿¬Ìå;font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:dPr><m:e><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-hansi-font-family:"Cambria Math";
 
-
    mso-bidi-font-family:»ªÎÄ¿¬Ìå;font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math";mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math";mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>KA</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
  mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>-</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-hansi-font-family:"Cambria Math";
 
-
    mso-bidi-font-family:»ªÎÄ¿¬Ìå;font-style:italic;mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math";mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math";mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>KC</m:r></span></span></i></m:den></m:f></m:e></m:d><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><m:r><span>, </m:r></span><m:r><span>and</m:r></span><m:r><span>
 
-
  </m:r></span><m:r><span>Bd</m:r></span></span></i></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:11.0pt;mso-text-raise:
 
-
-11.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=190 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image043.png"></span><![endif]><span lang=EN-US
 
-
style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>; (Figure 4)</span><span
 
-
lang=EN-US style='font-family:Calibri;mso-ascii-theme-font:major-latin;
 
-
mso-fareast-font-family:ËÎÌå;mso-hansi-theme-font:major-latin'><o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-fareast-font-family:»ªÎÄ¿¬Ìå;
 
-
mso-bidi-font-family:»ªÎÄ¿¬Ìå'>Then we can break the limitation of </span><span
 
-
class=SpellE><span lang=EN-US style='font-family:Calibri;mso-ascii-theme-font:
 
-
major-latin;mso-fareast-font-family:ËÎÌå;mso-hansi-theme-font:major-latin'>¦Çbiphase</span></span><span
 
-
lang=EN-US style='font-family:Calibri;mso-ascii-theme-font:major-latin;
 
-
mso-fareast-font-family:ËÎÌå;mso-hansi-theme-font:major-latin'> by improve the
 
-
stability of conformation B (increasing K3).</span><span lang=EN-US
 
-
style='mso-fareast-font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='font-family:Calibri;mso-ascii-theme-font:
 
-
major-latin;mso-fareast-font-family:ËÎÌå;mso-hansi-theme-font:major-latin'>Just
 
-
like all the hill functions, the curve of <span class=SpellE>triphase</span> <span
 
-
class=SpellE>riboswitch</span> also has an <span class=SpellE>upperlimit</span>.
 
-
To demonstrate this point, we have to rewrite the equation of dynamic range
 
-
with K1 and K3:<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:
 
-
normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Çtrip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>1</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>3+</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>3+1</m:r></span></span></i></m:num><m:den><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KA</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>1</m:r></span><m:r><span>K</m:r></span><m:r><span>3+</m:r></span></span></i><m:f><m:fPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
    normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>KB</m:r></span></span></i></m:num><m:den><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><m:r><span>KC</m:r></span></span></i></m:den></m:f><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>K</m:r></span><m:r><span>3+1</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:19.0pt;mso-text-raise:
 
-
-19.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=142 height=49 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image044.png"></span><![endif]><span lang=EN-US
 
-
style='font-family:Calibri;mso-ascii-theme-font:major-latin;mso-fareast-font-family:
 
-
ËÎÌå;mso-hansi-theme-font:major-latin'>;<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Then the limitation of <span class=SpellE>triphase</span>
 
-
<span class=SpellE>riboswitch</span> will be</span></p>
 
-
 
-
<p class=MsoNormal><!--[if gte msEquation 12]><m:oMath><i style='mso-bidi-font-style:
 
-
normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>¦Çtrip</m:r></span><m:r><span>h</m:r></span><m:r><span>as&#55349;&#56402;</m:r></span><m:r><span>_</m:r></span><m:r><span>max</m:r></span><m:r><span>=</m:r></span><m:r><span>¦Çbip</m:r></span><m:r><span>h</m:r></span><m:r><span>ase</m:r></span><m:r><span>(</m:r></span><m:r><span>K</m:r></span><m:r><span>1</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-font-family:"Cambria Math"'><m:r><span>¡ú</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>0</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math";
 
-
mso-fareast-font-family:ËÎÌå'><m:r><span>,</m:r></span><m:r><span>K</m:r></span><m:r><span>3</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-font-family:"Cambria Math"'><m:r><span>¡ú</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span style='font-family:ËÎÌå;mso-ascii-font-family:
 
-
"Cambria Math";mso-hansi-font-family:"Cambria Math"'><m:r><span>¡Þ</m:r></span></span></i><i
 
-
style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>)=</m:r></span></span></i><m:f><m:fPr><span
 
-
  style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
  mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
  normal'><m:ctrlPr></m:ctrlPr></span></m:fPr><m:num><i style='mso-bidi-font-style:
 
-
  normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>2</m:r></span><m:r><span>KC</m:r></span></span></i></m:num><m:den><i
 
-
  style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:"Cambria Math"'><m:r><span>a</m:r></span><m:r><span>3</m:r></span><m:r><span>KB</m:r></span></span></i></m:den></m:f></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:11.0pt;mso-text-raise:
 
-
-11.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=281 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image045.png"></span><![endif]><span lang=EN-US
 
-
style='mso-fareast-font-family:ËÎÌå'>;<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
 
-
id="_x56fe__x7247__x0020_6" o:spid="_x0000_i1030" type="#_x0000_t75" style='width:416pt;
 
-
height:199pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image046.emz" o:title=""/>
 
-
</v:shape><![endif]--><![if !vml]><img width=418 height=201
 
-
src="http://new87.guangstreet.com/img/triphase.files/image047.png" v:shapes="_x56fe__x7247__x0020_6"><![endif]></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Figure 4. <span class=SpellE>Triphase</span>
 
-
<span class=SpellE>riboswitch</span> can break through the <span class=SpellE>upperlimit</span>
 
-
of a <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span>
 
-
when the conformation B is dominant to conformation A</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<h1><span lang=EN-US>Response to the ligand concentration upper limit</span></h1>
 
-
 
-
<p class=MsoNormal align=left style='margin-bottom:12.0pt;text-align:left;
 
-
mso-pagination:widow-orphan;mso-layout-grid-align:none;text-autospace:none'><span
 
-
lang=EN-US>In our analysis thus far, we presume that the maximum ligand concentration
 
-
can always saturates the dose-response function. Nevertheless, many of </span><span
 
-
class=SpellE><span lang=EN-US style='font-family:Times;mso-bidi-font-family:
 
-
Times;mso-font-kerning:0pt'>riboswitches</span></span><span lang=EN-US
 
-
style='font-family:Times;mso-bidi-font-family:Times;mso-font-kerning:0pt'> may
 
-
not be saturated by the accessible upper limit in ligand concentration due to
 
-
permeability of the ligand across the cell membrane, cytotoxicity of the ligand
 
-
and so on. For example in our case, the ligand aminoglycosides antibiotics will
 
-
do harm to the bacterium without resistance genes. Here we set the accessible <span
 
-
class=SpellE>upperlimit</span> of ligand concentration as L¡¯ (Figure 5A).<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal align=left style='margin-bottom:12.0pt;text-align:left;
 
-
mso-pagination:widow-orphan;mso-layout-grid-align:none;text-autospace:none'><span
 
-
lang=EN-US style='font-family:Times;mso-bidi-font-family:Times;mso-font-kerning:
 
-
0pt'>The modeling revealed that the limit affects the dynamic range on the conformational
 
-
partitioning constant K2, consistent with the previous study. Moreover, the <span
 
-
class=SpellE>triphase</span> <span class=SpellE>riboswitch</span> is influenced
 
-
more significantly by limit of ligand concentration, because of a higher EC50
 
-
value (Figure 5B).<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
 
-
id="_x56fe__x7247__x0020_12" o:spid="_x0000_i1029" type="#_x0000_t75" style='width:416pt;
 
-
height:199pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image048.emz" o:title=""/>
 
-
</v:shape><![endif]--><![if !vml]><img width=418 height=201
 
-
src="http://new87.guangstreet.com/img/triphase.files/image049.png" v:shapes="_x56fe__x7247__x0020_12"><![endif]></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Figure 5B. Both <span class=SpellE>triphase</span>
 
-
and <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span> are
 
-
impacted by the limitation of ligand concentration. <span class=SpellE>Triphase</span>
 
-
<span class=SpellE>riboswitch</span> is more sensitive to that effect because
 
-
it always has a higher EC50 value. Higher K2L¡¯ level will reduce the influence,
 
-
in both of them.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<h1><span lang=EN-US>ODE model of Dynamic Process</span></h1>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><span class=msoIns><ins cite="mailto:Cx%20He"
 
-
datetime="2013-09-27T09:15">In the former discussion, we studied the steady
 
-
state solution of <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span>
 
-
</ins></span><span class=msoIns><ins cite="mailto:Cx%20He"
 
-
datetime="2013-09-27T09:16">and <span class=SpellE>triphase</span> <span
 
-
class=SpellE>riboswitch</span>. However, in spite of the <span class=SpellE>upperlimit</span>
 
-
of ligand concentration, </ins></span><span class=msoIns><ins
 
-
cite="mailto:Cx%20He" datetime="2013-09-27T09:23">steady state</ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:18"> solution </ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:24">is </ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:25">impossible
 
-
to achieve</ins></span> and the assumption of thermodynamic-driven regime is
 
-
not always true<span class=msoIns><ins cite="mailto:Cx%20He"
 
-
datetime="2013-09-27T09:18">. To more precisely </ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:23">quantify</ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:18"> the
 
-
dose-response of <span class=SpellE>riboswitch</span>, we </ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:20">used a</ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:23">n</ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:20"> ODE
 
-
(ordinary differential equations) model to describe the dynamic process</ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:26"> with
 
-
limitation of both ligand concentration and incubation time</ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:20">.</ins></span><span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:15"><o:p></o:p></ins></span></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>In <span class=msoIns><ins cite="mailto:w"
 
-
datetime="2013-09-25T12:47">a </ins></span><span class=SpellE>biphase</span> <span
 
-
class=SpellE>riboswitch</span>:</span></p>
 
-
 
-
<p class=MsoNormal><span style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>&#8706;<span
 
-
lang=EN-US>[A]/</span>&#8706;<span lang=EN-US>t =kfA-k2[A]-a<span class=msoIns><ins
 
-
cite="mailto:Cx%20He" datetime="2013-09-27T06:24">1</ins></span>[A]+k-2[C]<o:p></o:p></span></span></p>
 
-
 
-
<p class=MsoNormal><span style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>&#8706;<span
 
-
lang=EN-US>[C]/</span>&#8706;<span lang=EN-US>t
 
-
=kfC-k-2[C]-k4[C][L]-a3[C]+k2[A]+k-4[CL]<o:p></o:p></span></span></p>
 
-
 
-
<p class=MsoNormal><span style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>&#8706;<span
 
-
lang=EN-US>[CL]/</span>&#8706;<span lang=EN-US>t=-k-4[CL]-a3[CL]+k<span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T06:25">4</ins></span>[C][L]<o:p></o:p></span></span></p>
 
-
 
-
<p class=MsoNormal><span style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>&#8706;<span
 
-
lang=EN-US>P/</span>&#8706;<span lang=EN-US>t = KA[A]+KC[C]+KC[CL]-<span
 
-
class=SpellE>ap</span>[P]<span class=msoIns><ins cite="mailto:Cx%20He"
 
-
datetime="2013-09-27T09:21"><o:p></o:p></ins></span></span></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:
 
-
»ªÎÄ¿¬Ìå'>In <span class=msoIns><ins cite="mailto:w" datetime="2013-09-25T12:47">a </ins></span><span
 
-
class=SpellE>triphase</span> <span class=SpellE>riboswitch</span>:<o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>&#8706;<span
 
-
lang=EN-US>[A]/</span>&#8706;<span lang=EN-US>t
 
-
=kfA-k1[A]-k2[A]-a1[A]+k-1[B]+k-2[C]<o:p></o:p></span></span></p>
 
-
 
-
<p class=MsoNormal><span style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>&#8706;<span
 
-
lang=EN-US>[B]/</span>&#8706;<span lang=EN-US>t
 
-
=kfB-k-1[B]-k3[B]-a2[B]+k1[A]+k-3[B]<o:p></o:p></span></span></p>
 
-
 
-
<p class=MsoNormal><span style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>&#8706;<span
 
-
lang=EN-US>[C]/</span>&#8706;<span lang=EN-US>t
 
-
=kfC-k-2[C]-k-3[C]-k4[C][L]-a3[C]+k2[A]+k3[B]+k-4[CL]<o:p></o:p></span></span></p>
 
-
 
-
<p class=MsoNormal><span style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>&#8706;<span
 
-
lang=EN-US>[CL]/</span>&#8706;<span lang=EN-US>t=-k-4[CL]-a3[CL]+k<span
 
-
class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T06:25">4</ins></span>[C][L]<o:p></o:p></span></span></p>
 
-
 
-
<p class=MsoNormal><span style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>&#8706;<span
 
-
lang=EN-US>P/</span>&#8706;<span lang=EN-US>t = KA[A]+KB[B]+KC[C]+KC[CL]-<span
 
-
class=SpellE>ap</span>[P]<o:p></o:p></span></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:
 
-
»ªÎÄ¿¬Ìå'><span class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:22">With
 
-
following limitation:<o:p></o:p></ins></span></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:
 
-
»ªÎÄ¿¬Ìå'><span class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:22">K1
 
-
= k-1/k1, K2 = k-2/k2, K3 = k-3/k3, K4 = k4/k-4</ins></span></span><span
 
-
style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'><span class=msoIns><ins
 
-
cite="mailto:Cx%20He" datetime="2013-09-27T09:22">£»<span lang=EN-US><o:p></o:p></span></ins></span></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:
 
-
»ªÎÄ¿¬Ìå'><span class=msoIns><ins cite="mailto:Cx%20He" datetime="2013-09-27T09:22">And
 
-
</ins></span></span><!--[if gte msEquation 12]><m:oMath><m:d><m:dPr><m:begChr
 
-
    m:val="{"/><m:endChr m:val=""/><span style='font-family:"Cambria Math";
 
-
  mso-ascii-font-family:"Cambria Math";mso-hansi-font-family:"Cambria Math";
 
-
  font-style:italic;mso-bidi-font-style:normal'><span class=msoIns><ins
 
-
  cite="mailto:Cx%20He" datetime="2013-09-27T09:22"><m:ctrlPr></m:ctrlPr></ins></span></span></m:dPr><m:e><m:eqArr><m:eqArrPr><span
 
-
    style='font-family:"Cambria Math";mso-ascii-font-family:"Cambria Math";
 
-
    mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
 
-
    normal'><span class=msoIns><ins cite="mailto:Cx%20He"
 
-
    datetime="2013-09-27T09:22"><m:ctrlPr></m:ctrlPr></ins></span></span></m:eqArrPr><m:e><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><span class=msoIns><ins cite="mailto:Cx%20He"
 
-
    datetime="2013-09-27T09:22">KA/a1&lt;KC/a3</ins></span></span></i></m:e><m:e><i
 
-
    style='mso-bidi-font-style:normal'><span lang=EN-US style='font-family:
 
-
    "Cambria Math"'><span class=msoIns><ins cite="mailto:Cx%20He"
 
-
    datetime="2013-09-27T09:22">KB/a2&lt;KC/a3</ins></span></span></i></m:e></m:eqArr></m:e></m:d></m:oMath><![endif]--><![if !msEquation]><span
 
-
lang=EN-US style='font-size:12.0pt;font-family:Cambria;mso-ascii-theme-font:
 
-
minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:minor-fareast;
 
-
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;position:relative;top:11.0pt;mso-text-raise:
 
-
-11.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
 
-
AR-SA'><img width=93 height=33 id="_x0000_i1025"
 
-
src="http://new87.guangstreet.com/img/triphase.files/image050.png"></span><![endif]><span style='font-family:
 
-
ËÎÌå;mso-ascii-font-family:Cambria;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:
 
-
ËÎÌå;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Cambria;
 
-
mso-hansi-theme-font:minor-latin'><span class=msoIns><ins cite="mailto:Cx%20He"
 
-
datetime="2013-09-27T09:22">£»</ins></span></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>In the ODE model that is closer to reality
 
-
than the steady-state solution, <span class=SpellE>triphase</span> <span
 
-
class=SpellE>riboswitch</span> performs better in the perspective of dynamic
 
-
range and other descriptors. </span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Qualitatively speaking, the EC50 value and
 
-
dynamic range of <span class=SpellE>triphase</span> <span class=SpellE>riboswitch</span>
 
-
is higher than that <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span>
 
-
(Figure 6A), consistent with former solution. The effect of ligand
 
-
concentration limit is also similar (Figure 6B). </span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Some of conclusion should be revised in the
 
-
ODE model. For example, the highest level of <span class=SpellE>triphase</span>
 
-
<span class=SpellE>riboswitch</span> in the limited time is not equal to that
 
-
of <span class=SpellE>biphase</span> <span class=SpellE>riboswitch</span> (Figure
 
-
6C). And the dynamic range difference between two patterns is so significant
 
-
that that even with a1 increasing, the <span class=SpellE>triphase</span> one
 
-
is always better (Figure 6D) </span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
 
-
id="_x56fe__x7247__x0020_1" o:spid="_x0000_i1028" type="#_x0000_t75" style='width:416pt;
 
-
height:199pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image051.emz" o:title=""/>
 
-
</v:shape><![endif]--><![if !vml]><img width=418 height=201
 
-
src="http://new87.guangstreet.com/img/triphase.files/image052.png" v:shapes="_x56fe__x7247__x0020_1"><![endif]></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Figure 6B. The Limitation of ligand
 
-
concentration affects the dynamic range &#8211; K2 curve. The <span
 
-
class=SpellE>triphase</span> <span class=SpellE>riboswitch</span> is more
 
-
sensitive, similar to former modeling.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
 
-
id="_x56fe__x7247__x0020_5" o:spid="_x0000_i1027" type="#_x0000_t75" style='width:416pt;
 
-
height:199pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image053.emz" o:title=""/>
 
-
</v:shape><![endif]--><![if !vml]><img width=418 height=201
 
-
src="http://new87.guangstreet.com/img/triphase.files/image054.png" v:shapes="_x56fe__x7247__x0020_5"><![endif]></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Figure 6D. <span class=SpellE>Triphase</span>
 
-
<span class=SpellE>riboswitch</span> always has a higher dynamic range, even
 
-
with the faster mRNA decay of conformation A.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
 
-
id="_x56fe__x7247__x0020_14" o:spid="_x0000_i1026" type="#_x0000_t75" alt="˵Ã÷: Macintosh HD:Users:cxhe:¿ìÅÌ:Lab:Project Design:wiki writing:8 Modeling:General Principle of Triphase Riboswitch:Figures:DRDP irreversible.eps"
 
-
style='width:414pt;height:198pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image055.emz" o:title="DRDP irreversible.eps"/>
 
-
</v:shape><![endif]--><![if !vml]><img width=416 height=200
 
-
src="http://new87.guangstreet.com/img/triphase.files/image056.png"
 
-
alt="˵Ã÷: Macintosh HD:Users:cxhe:¿ìÅÌ:Lab:Project Design:wiki writing:8 Modeling:General Principle of Triphase Riboswitch:Figures:DRDP irreversible.eps"
 
-
v:shapes="_x56fe__x7247__x0020_14"><![endif]></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Figure 6C. The highest levels of <span
 
-
class=SpellE>triphase</span> and <span class=SpellE>biphase</span> <span
 
-
class=SpellE>riboswitch</span> are not equal. The difference of highest level
 
-
between <span class=SpellE>triphase</span> and <span class=SpellE>biphase</span>
 
-
<span class=SpellE>riboswitch</span> is related to the irreversible <span
 
-
class=SpellE>processs</span>, measured by K2/(K1*K3).</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape
 
-
id="_x56fe__x7247__x0020_3" o:spid="_x0000_i1025" type="#_x0000_t75" alt="˵Ã÷: Macintosh HD:Users:cxhe:¿ìÅÌ:Lab:Project Design:wiki writing:4 Modification and Optimization:General Principle of Triphase Riboswitch:Figures:Normalized Dynamic Process.eps"
 
-
style='width:414pt;height:198pt;visibility:visible;mso-wrap-style:square'>
 
-
<v:imagedata src="http://new87.guangstreet.com/img/triphase.files/image057.emz" o:title="Normalized Dynamic Process.eps"/>
 
-
</v:shape><![endif]--><![if !vml]><img width=416 height=200
 
-
src="http://new87.guangstreet.com/img/triphase.files/image058.png"
 
-
alt="˵Ã÷: Macintosh HD:Users:cxhe:¿ìÅÌ:Lab:Project Design:wiki writing:4 Modification and Optimization:General Principle of Triphase Riboswitch:Figures:Normalized Dynamic Process.eps"
 
-
v:shapes="_x56fe__x7247__x0020_3"><![endif]></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Figure 6A. In the ODE model, the <span
 
-
class=SpellE>triphase</span> <span class=SpellE>riboswitch</span> shows a significant
 
-
high dynamic range and a higher EC50 value.</span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US>Reference:</span></p>
 
-
 
-
<p class=MsoNormal align=left style='text-align:left;mso-pagination:widow-orphan'><span
 
-
class=SpellE><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
 
-
mso-fareast-font-family:"Times New Roman";color:#222222;background:white;
 
-
mso-font-kerning:0pt'>Beisel</span></span><span lang=EN-US style='font-size:
 
-
10.0pt;font-family:Arial;mso-fareast-font-family:"Times New Roman";color:#222222;
 
-
background:white;mso-font-kerning:0pt'> C L, <span class=SpellE>Smolke</span> C
 
-
D. Design principles for <span class=SpellE>riboswitch</span> <span
 
-
class=GramE>function[</span>J]. <span class=SpellE>PLoS</span> Computational
 
-
Biology, 2009, 5(4): e1000363.</span><span lang=EN-US style='font-size:10.0pt;
 
-
font-family:Times;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:
 
-
"Times New Roman";mso-font-kerning:0pt'><o:p></o:p></span></p>
 
-
 
-
<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
</div>
 
-
 
-
<div style='mso-element:endnote-list'><![if !supportEndnotes]><br clear=all>
 
-
 
-
<hr align=left size=1 width="33%">
 
-
 
-
<![endif]>
 
-
 
-
<div style='mso-element:endnote' id=edn1>
 
-
 
-
<p class=MsoEndnoteText><a style='mso-endnote-id:edn1' href="#_ednref1"
 
-
name="_edn1" title=""><span class=MsoEndnoteReference><span lang=EN-US><span
 
-
style='mso-special-character:footnote'><![if !supportFootnotes]><span
 
-
class=MsoEndnoteReference><span lang=EN-US style='font-size:12.0pt;font-family:
 
-
Cambria;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:ËÎÌå;mso-fareast-theme-font:
 
-
minor-fareast;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";
 
-
mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:
 
-
ZH-CN;mso-bidi-language:AR-SA'>[i]</span></span><![endif]></span></span></span></a><span
 
-
lang=EN-US> In the previous article ¡®Design Principle of <span class=SpellE>Riboswitch</span>
 
-
Function¡¯ wrote by Chase L. <span class=SpellE>Beisel</span>, and Christina D.
 
-
Smoke, the ON and OFF behavior are distinguished by if KA is higher than KB or
 
-
not. However, we think actually the KA/a1 and KB/a2 determined the behavior,
 
-
which can be easily proved: </span></p>
 
-
 
-
<p class=MsoEndnoteText><span lang=EN-US>The dose-response curve is monotone.
 
-
In ON behavior, the</span><span lang=EN-US style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:
 
-
»ªÎÄ¿¬Ìå'> </span><span style='font-family:»ªÎÄ¿¬Ìå;mso-bidi-font-family:»ªÎÄ¿¬Ìå'>&#8706;<span
 
-
lang=EN-US>P/</span>&#8706;<span lang=EN-US>L should be always positive,
 
-
indicating that KA/a1&lt;KB/a2 rather than KA&lt;KB.<o:p></o:p></span></span></p>
 
-
 
-
<p class=MsoEndnoteText><span lang=EN-US><span
 
-
style="mso-spacerun:yes">&nbsp;</span></span></p>
 
-
 
-
<p class=MsoEndnoteText><span lang=EN-US><o:p>&nbsp;</o:p></span></p>
 
-
 
-
</div>
 
-
 
-
</div>
 
-
 
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</div>
</div>
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Revision as of 17:01, 27 September 2013

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