Smash & Grab

[ez003450 at othello.ucdavis.edu]

I just discovered an easy way to increase the efficiency of E. coli
transformation when smashing and grabbing plasmids from Yeast. After 
collecting the supernatant from the Yeast lysis step, precipitate it with 
ethanol and resuspend in TE. Then purify the DNA extract using Wizard 
miniprep columns from Promega. The purification on the miniprep columns 
only takes about 5 minutes and seems to remove inhibitors of E. coli 
transformation resulting in a large(>20 fold) increase in transformation. 
Using this modification I was able to get E. coli transformants from 
extracts that gave me no transformants before purification.