December
1
DNA Precipitate Formation
Objectives: Have a large amount of pure phage DNA pelleted, to extract and analyze.
Rationale: To analyze the genome, the phage DNA must be extracted in large quantities.
Procedure:
Note – These procedures were not done aseptically
- Added 10 mL of high titer lysate to a 50 mL conical tube
- Added 40 uL nuclease using micropipettor
- Transferred 4 mL Polyethylene Glycol to Lysate
- Left 50 mL tube in an incubator at 37 degrees Celsius for 30 minutes
- Removed tubes from incubator, and left at room temperature for 45 minutes
- Centrifuged the lysate mixture at 10,000 Gs for 20 minutes
- Removed the Supernatant
- Air dried pellets and placed in a microcentrifuge tube
Future Plans: Use DNA pellets to complete extraction and PCR procedures.