Team:TzuChiU Formosa/Project
From 2013.igem.org
(Difference between revisions)
Allen30209 (Talk | contribs) |
Allen30209 (Talk | contribs) |
||
Line 183: | Line 183: | ||
<table style="border: 5px hidden rgb(14, 150, 25); height: 250px; background-color: rgb(255, 255, 255); width: 800px; margin-left: 30px; align="left" cellpadding="5" cellspacing="5" frame="none" rules="ALL"> | <table style="border: 5px hidden rgb(14, 150, 25); height: 250px; background-color: rgb(255, 255, 255); width: 800px; margin-left: 30px; align="left" cellpadding="5" cellspacing="5" frame="none" rules="ALL"> | ||
<BR> | <BR> | ||
- | + | ||
<tbody> | <tbody> | ||
<tr> | <tr> | ||
- | <td></td> | + | <td><font color="black" face="Calibri" size="5">Background</font></td> |
<tr> | <tr> | ||
<td><font color="black" face="Calibri" size="3"> | <td><font color="black" face="Calibri" size="3"> | ||
Line 215: | Line 215: | ||
<br> | <br> | ||
The mechanism of RNA interference is probably originated form an organism that is infected by a virus. The RNA of the virus enters into the cell and is then recognized and cleaved by the dicer into small fragments. These small fragments possess the function of RNAi hence, inhibiting the original physiological mechanism of the cell.</font></td> | The mechanism of RNA interference is probably originated form an organism that is infected by a virus. The RNA of the virus enters into the cell and is then recognized and cleaved by the dicer into small fragments. These small fragments possess the function of RNAi hence, inhibiting the original physiological mechanism of the cell.</font></td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td><font face="calibri" size="5px"><br>Overview</font></td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td><font color="black" face="Calibri" size="3">RNAi does not possess a RISC system inside a prokaryotic cell. In place of the RISC is its peculiar CRISPR system. | ||
+ | CRISPR is an immunization gene in a prokaryotic cell that fights against the exogenous DNA. CRISPR is divided into two major components namely the CAS gene and the repeat-spacer array. | ||
+ | <br> | ||
+ | <br> | ||
+ | When an exogenous DNA enters into the prokaryotic cell, the CAS protein captures part of this exogenous DNA and inserts a section of this DNA into the repeat-spacer array to perform transcription. We will then end up having a strand of repetitive RNA with partial sections being the complimentary fragments of the exogenous gene. | ||
+ | CAS ll will then cleave these repetitive RNA fragments and form many small fragments with the antisense RNA. Lastly, CAS lll will carry these fragments and recognize the complimentary exogenous DNA therefore, decreasing / suppressing the function of the exogenous gene. | ||
+ | <br> | ||
+ | <br> | ||
+ | We aim to us this mechanism as a basis and send our desired RNA sequence into the cell, to activate the CRISPR system in order to interfere specific genes with our fragments. Our ultimate goal is to use the technique of RNAi, interfering the antibiotic resistance gene of the bacteria. This would then result in the bacteria losing the function of being resistant to antibiotics. | ||
+ | </td></font> | ||
+ | </tr> | ||
+ | <tr> | ||
</tr> | </tr> | ||
</tbody> | </tbody> |
Revision as of 13:29, 26 September 2013