Richard Lab:Ligation: Difference between revisions

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<center>
<center>
'''This protocol is for the typical ligation of DNA done in the Richard Lab.   
'''This protocol is for the typical ligation of DNA done during [[Richard Lab:Amplified insert assembly|Amplified Insert Assembly]].   
'''The [[DNA_ligation | consensus Ligation protocol]] should be consulted if deviating from the procedure outlined here.'''</center>
'''The [[DNA_ligation | consensus Ligation protocol]] should be consulted if deviating from the procedure outlined here.'''</center>


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1.Mix together the following:
1.Mix together the following:
::a. 5µl digested front part (EcoRI and SpeI).
::a. 11µl of deionized water
::b. 5µl digested rear part (XbaI and PstI).
::b. 2µl of Reaction Buffer for T4 Ligase.
::c. 4µl deionized water.
::c. 2µl digested "Vector" (Phosphatased).  
::d. 3µl digested vector (EcoRI and PstI).  
::d. 4µl digested "Insert" (PCR product digested with DpnI).
::e. 2µl of Reaction Buffer for T4 Ligase.
::e. 1µl of [[T4_DNA_ligase|DNA Ligase]].
::f. 1µl of [[T4_DNA_ligase|DNA Ligase]].
2.  Incubate at room-temp for 10 mins (or at 4°C overnight for blunt ends)<br>
2.  Incubate at room-temp for 10 mins (or at 4°C overnight)
3.  Kill Reaction for 15 mins at 65°C '''Do not forget this step'''
3.  Kill Reaction for 15 mins at 80°C


===Notes===
===Notes===
* [[User:Michael A. Speer|Mike]] has achieved good results with leaving the ligation in a drawer overnight, but this should not be done if using PEG to speed up the ligation.
* If the ligase is not heat killed then it will remain attached to the DNA and will severely inhibit transformation efficiency.
* If the ligase is not heat killed then it will remain attached to the DNA and will severely inhibit transformation efficiency.
Back to [[Richard_Lab:protocols | Protocols]]

Latest revision as of 12:13, 29 March 2011

Back to Protocols

This protocol is for the typical ligation of DNA done during Amplified Insert Assembly.

The consensus Ligation protocol should be consulted if deviating from the procedure outlined here.

Procedure

1.Mix together the following:

a. 11µl of deionized water
b. 2µl of Reaction Buffer for T4 Ligase.
c. 2µl digested "Vector" (Phosphatased).
d. 4µl digested "Insert" (PCR product digested with DpnI).
e. 1µl of DNA Ligase.

2. Incubate at room-temp for 10 mins (or at 4°C overnight for blunt ends)
3. Kill Reaction for 15 mins at 65°C Do not forget this step

Notes

  • If the ligase is not heat killed then it will remain attached to the DNA and will severely inhibit transformation efficiency.

Back to Protocols