Team:SUSTC-Shenzhen/Notebook/CRISPR/Verification-for-pX330-mCherry-pX330-mCherry-GAL4-enzyme-digestion

From 2014.igem.org

Team SUSTC-Shenzhen

Notebook

Elements of the endeavor.

Contents


Verification for pX330+mCherry, pX330+mCherry+GAL4 by enzyme digestion

2014/8/22

Materials

Enzymer: BbsI, AgeI, EcoRI Buffe: Buffer2.1, Cutsmart Buffer

Methods

Digestion system

BbsI digestion system:

Component Volume
BbsI 0.5ul
DNA 0.5ul
10X NEBuffer 2.1 1ul
ddH2O 8ul
Total 10ul

EcoRI digestion system:

Component Volume
EcoRI 0.5ul
DNA 0.5ul
10X NEBuffer 2.1 1ul
ddH2O 8ul
Total 10ul

AgeI digestion system:

Component Volume
AgeI 0.5ul
DNA 0.5ul
10X NEBuffer 2.1 1ul
ddH2O 8ul
Total 10ul

BbsI and EcoRI digestion system:

Component Volume
BbsI 0.5ul
EcoRI 0.5ul
DNA 0.5ul
10X NEBuffer 2.1 1ul
ddH2O 7.5ul
Total 10ul

AgeI and EcoRI digestion system:

Component Volume
AgeI 0.5ul
EcoRI 0.5ul
DNA 0.5ul
10X NEBuffer 2.1 1ul
ddH2O 7.5ul
Total 10ul

Incubate at 37C, 4hours [12:46~17:00]

Gel electrophoresis

Making the agarose gel (1%):

Component volume
TAE 40ml
Agarose 0.4g
Gene Green 1ul

Running conditions: 130V, 30min

Results

{{{2}}}

From the picture, we can see that:
The position of the bands generated by singly digestion with AgeI or EcoRI aligned with that of the 6000bp indicated by Marker. And when digested with AgeI and EcoRI simultaneously, there were two bands appearing on the track, one is around 5000bp, and the other is nearly 800bp, both of which implied the success of our ligation (point-mutated mCherry fragment was inserted into pX330 vector).
What’s more, from the results of double digestion by BbsI and EcoRI as well as single digestions with BbsI or EcoRI, we can proof the successful mutation-out of BbsI site on mCherry fragment again. (a. Figure of double digestion by BbsI and EcoRI was the same as that of the single digestions with EcoRI; b. Figure of single digestions with BbsI was the same as that of the original plasmid without digestion.)