Team:Paris Bettencourt/Protocols/dneasy-blood-and-tissue-kit

Yeast DNA extraction using DNeasy® Blood & Tissue Kit
  • Centrifuge a maximum of 5x106 cells for 5 minutes at 300g (190rpm). Resuspend in 200µL PBS. Add 20µL zymolyase.
  • Add 3 volume of QG buffer (100mg of gel ~ 100ul) in the tube and incubate for 10 min at 50°C (or 10 min on a vortex).
  • Add one volume of isopropanol and mix.
  • vortex the tube for 2 min at 14 000 rpm.
  • Carefully pipette the supernanant in a QIAquick column.
  • Put the column in a 2ml microcentrifuge tube and centrifuge it for 1 min at 14 000 rpm.
  • Throw the supernatant.
  • Add 750 uL of PE buffer in the column and centrifuge for 1 min and discard flow-through.
  • Centrifuge again for 2 min and put the column in a new 1.5uL microcentrifuge tube.
  • Elute the DNA by putting 50uL of water in the middle of the column and let it stand for 2 min.
  • Centrifugate for 2min at 10 000 rpm