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MOLECULAR BIOLOGY: WORKING WITH DNA

POLYMERASE CHAIN REACTION

MOUSE TAIL TIP DIGEST PROTOCOL: PREPARATION OF DNA

Mouse Tail Tip Digest Protocol: Preparation of DNA
 
Procedure
1. Cut 20 to 30 mm of mouse tail from a mouse using a razor blade.

2. Place tails in labeled 1.5 ml microcentrifuge tubes.

3. Prepare digest mixture:

17 μl of Tail Tip Buffer

3 μl of 20 mg/ml Proteinase K

4. Add 20 μl of digest mixture from Step #3 into each tube containing tail tip.

5. Incubate tubes at 55°C for 1 to 2 hours.

6. After incubation, spin tubes for 10 seconds at top speed in a microcentrifuge.

7. Add 500 μl of ddH2O to each tube.

8. Boil samples for 5 minutes.

9. Spin samples briefly for 10 sec at top speed in a microcentrifuge and store tubes at 4°C for PCR analysis (see Protocol on PCR analysis of Tail Tip DNA).

Solutions
Tail Tip Buffer   1 mM EDTA, pH 8.0
1% (w/v) SDS
50 mM Tris-HCl, pH 8.0
20 mM NaCl
Proteinase K   20 mg/ml Proteinase K in ddH2O
Store in aliquots at -20°C.
 
BioReagents and Chemicals
SDS
Proteinase K
Tris-HCl
EDTA
Mice
Sodium Chloride
 
Protocol Hints
No hints are associated with this bioProtocol
 
Citation and/or Web Resources
1. Modified from the Hanahan Laboratory at UCSF.