Overnight 16 Hour Gel

To test how intact the DNA is from the recent Hirt and puregene of virus DNA from infected Dinn cells, I wanted to run an overnight gel as I have done previously.

We had also purchased a special agarose that is for pluse-phase gels or HMW gels: seakem lonza gold agarose, which I wanted to try if this resolves the bands better.

For this gel I ran: 3 Hirt cell samples, 2 hirt supernatant samples, and both puregene samples.

I used 10ul of each sample, with 2ul of loading dye

  • 0.7% gel mix:
    • 160mL 1X TAE
    • 1.155g agarose
  • Microwaved for ~4min
  • Added 2ul midori stain
  • Pipetted 1mL into a 1.5mL tube and saved on the heat block at 65 degrees C make sure the heat block is on and running
  • Made sure the large tray had well sealed tape barriers
  • Let the gel liquid cool for ~10 min until pouring into the tray and placing in the combs
  • Gel cooled in ~20 min or less
  • Added 1 round of PFG ladder to the left-most well
  • Let the 1mL saved gel cool for ~3 min outside of the heat block
  • Filled the PFG well with cooled gel liquid to the top of the well to seal the round in
  • Waited ~3 minutes for the wells to cool
  • Made up 48kb ladder:
    • 6ul ladder
    • 30ul loading dye
    • 144ul molecular grade water
  • Placed the gel tray into the box after removing the tape
  • Mixed samples with loading dye in strip tubes
  • Added 5ul 48kb ladder to 2 wells in the gel (I should have used more of this)
  • Added in the 12ul of each sample
  • Set the timer for 16.5 hours at 40 volts and started it at ~5:14pm
  • Gel was stopped at ~9:15am