AlanFung:LabNotes/Capturing/BisFirstExon 2009 12 2: Difference between revisions
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*Sample Digestion with Proteinase K | *Sample Digestion with Proteinase K | ||
*Bisulfite Conversion of DNA | *Bisulfite Conversion of DNA | ||
==Sample== | |||
NA12878 | |||
NA18507 | |||
NA20431 | |||
CV-Fibr | |||
CV-iPS-B | |||
CV-iPS-F | |||
==Reagent Preparation== | ==Reagent Preparation== | ||
===Proteinase K=== | ===Proteinase K=== |
Revision as of 22:56, 2 December 2009
Overview
- Sample preparation
- Sample Digestion with Proteinase K
- Bisulfite Conversion of DNA
Sample
NA12878 NA18507 NA20431 CV-Fibr CV-iPS-B CV-iPS-F
Reagent Preparation
Proteinase K
- Add 260ul(D5020) or 1040ul(D5021) of proteinase K storage buffer to the tube containing proteinase K
- Dissolve completely and store at -20C
CT Conversion Reagent
- CT Conversion Reagent is light sensitive, so minize its exposure to light
- Add 790ul M-solubilization buffer and 300ul M-Dilution Buffer to a tube of CT Conversion Reagent
- Mix by frequent vortexing at RT for 10m
- Mix 160ul of M-Reaction Buffer and mix an additional 1m
M-Wash Buffer
- Add 24ml of 100% ethanol to the 6ml M-Wash Buffer concentrate (D5020)before use
- Add 96ml 100% ethanol to the 24ml M-Wash buffer concentrate (D5021) before use
Protocol
Sample Preparation
For optimal results use 500ng of DNA per treatment
- Turn on heat bath to 50C before sample prep
- Wash cells with PBS once and perform a cell count
- Sample Digestion with Proteinase K
A-2000 cells | B-100,000 cells | |
M-Digestion Buffer (2X) | 10ul | 13ul |
Sample | up to 9ul | up to 12ul |
Proteinase K | 1ul | 1ul |
H20 | X ul | x ul |
Total Volume | 20ul | 26 ul |
- Incubate sample(s) for 20m at 50C
- If following procedure A, procedd directly to Section II
- If following procedure B, mix content throughly with vortex then centrifuge for 5m at 10,000g
- Extract 20ul of the supernatant for bisulfite conversion
Section II Bisulfite conversion of DNA
- Add 200ul of sample to 130ul of CT conversion reagent solution in a pcr tube
- Vortex the sample to mix
- Pulse centrifuge
- Perform
*98C for 8m *64C for 3.5hr *4C hold
- Add 600ul of M binding buffer into a column assembly
- Load sample(s) to the column
- Close the cap and mix by inverting the column several times
- Centrifuge at >10,000g for 30sec
- Discard the flow through
- Add 100ul of M-Wash Buffer to the column
- Centrifuge at full speed for 30sec
- Add 200ul of M-Desulphonation buffer to the column and let stand at RT for 20m
- Centrifuge for 30sec
- Place the column into a 1.5ml tube
- Add 10ul of M-elution buffer directly to the column matrix (Volume can be adjusted, depending on the requirements)
- Centrifuge for 30sec to elute the DNA