Richard Lab:Ligation: Difference between revisions

From OpenWetWare
Jump to navigationJump to search
 
(13 intermediate revisions by the same user not shown)
Line 1: Line 1:
'''This protocol is for the typical ligation of DNA done in the Richard Lab.   
Back to [[Richard_Lab:protocols | Protocols]]
<center>
'''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>


Line 5: Line 7:


1.Mix together the following:
1.Mix together the following:
::a. 9µl of digested gel el extracted insert
::a. 11µl of deionized water
::b. 5µl of digested gel extracted vector
::b. 2µl of Reaction Buffer for T4 Ligase.
::c. 2µl of Reaction Buffer (or any NEBuffer)
::c. 2µl digested "Vector" (Phosphatased).
::d. 2µl of 10mM ATP solution (only if NEBuffer was used)
::d.  4µl digested "Insert" (PCR product digested with DpnI).
::e.1µl of [[T4_DNA_ligase|DNA Ligase]]
::e. 1µl of [[T4_DNA_ligase|DNA Ligase]].
::f. 1µl of PEG solution (optional)
2.  Incubate at room-temp for 10 mins (or at 4°C overnight for blunt ends)<br>
::g. Water to bring up to 20µl
3.  Kill Reaction for 15 mins at 65°C '''Do not forget this step'''
2.  Incubate at room-temp for 30-120 mins (or at 16°C overnight)
3.  Kill Reaction for 15 mins at 70°C


===Notes===
===Notes===
* [[User:Michael A. Speer|Mike]] has achieved good results with leaving the ligation in a drawer overnight.
* 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