PCR Colony Screening

Reagents and Materials
Colonies on a plate
Sterile toothpicks
ddH20
PCR tubes
LB Plate containing appropriate selective antibiotic and a grid
DNA Polymerase
10 PCR Buffer
10mM dNTPs
primer set
thermal cycler
agarose gel

  1. Touch toothpick to a colony. Touch toothpick to 35ul ddH20 in a PCR tube.
  2. Streak a sectored agar plate with the toothpick.
  3. Make a PCR Master mix and add 15ul to each PCR tube inoculted with a colony.

  
Per reaction: 

10X PCR Buffer 

5ul

10mM dNTPs 

1ul

primer set 

30um each

DNA Polymerase 

0.5

dH20 to 

15ul

1 minute @ 95°C
2 minutes @ 50°C (or primer Tm-5)
2 minutes @ 72°C
35 cycles

  1. Run 10 ul of product on an agarose gel alongside appropriate controls.