Team:British Columbia/Notebook/Protocols/AnnealedOligonucleotides

From 2013.igem.org

(Difference between revisions)
(Oligo design)
(Assembling short parts from annealed oligonucleotides)
Line 5: Line 5:
====XbaI, PstI====
====XbaI, PstI====
-
<tt>5 CTAGAG-------------sequence-------------TACTAGTAGCGGCCGCTGCA</tt><br/>
+
<tt>5' CTAGAG-------------sequence-------------TACTAGTAGCGGCCGCTGCA</tt><br/>
-
<tt>3 ----TC--reverse complement of sequence--ATGATCATCGCCGGCG----</tt><br/>
+
<tt>3' ----TC--reverse complement of sequence--ATGATCATCGCCGGCG----</tt><br/>
====EcoRI, SpeI====
====EcoRI, SpeI====
-
<tt>5 AATTCGCGGCCGCTTCTAGAG-------------sequence-------------TA----</tt><br/>
+
<tt>5' AATTCGCGGCCGCTTCTAGAG-------------sequence-------------TA----</tt><br/>
-
<tt>3 ----GCGCCGGCGAAGATCTC--reverse complement of sequence--ATGATC</tt><br/>
+
<tt>3' ----GCGCCGGCGAAGATCTC--reverse complement of sequence--ATGATC</tt><br/>
===Phosphorylate Oligonucleotides===
===Phosphorylate Oligonucleotides===

Revision as of 22:39, 22 September 2013

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Contents

Assembling short parts from annealed oligonucleotides

Oligo design

Add the following prefix and suffix to both the sense and antisense sequences, depending on which enzymes you are planning on cutting your vector with:

XbaI, PstI

5' CTAGAG-------------sequence-------------TACTAGTAGCGGCCGCTGCA
3' ----TC--reverse complement of sequence--ATGATCATCGCCGGCG----

EcoRI, SpeI

5' AATTCGCGGCCGCTTCTAGAG-------------sequence-------------TA----
3' ----GCGCCGGCGAAGATCTC--reverse complement of sequence--ATGATC

Phosphorylate Oligonucleotides

If the cut vector has been dephosphorylated, either order 5’ phosphorylated oligonucleotides or phosphorylate the oligonucleotides (e.g. with T4 PNK).

Anneal Oligonucleotides

Mix sense and antisense sequences at equimolar concentrations in TE pH 8.0 buffer. Heat to 95 °C for 3 minutes and slowly cool to 25 °C at 2 °C per minute.

Ligate oligonucleotides

Add 60-70 ng of the annealed oligonucleotides to 10-15 ng of cut, dephosphorylated vector. Ligate and transform according to the standard protocol.