DNA prep for transient transfection

[nick at lmb1.rug.ac.be]

Hi there,

As a coincidence, we had a discussion only yesterday about problems with low 
efficiencies of transient transfections in our lab.

More precisely, transfections using the DEAE-dextrane method seem to give very 
variable results, given one plasmid preparation to another.

The low efficiency is independent of the person, the acceptor cells or the DNA 
itself. In fact...the problem seems to be the preparation method used. Sorry 
to tell you so, but this all began when we started using QIAGEN columns!

I am not trying to start a "WIZARD (TM)"-like hystery here. We just want to 
know if other people have experienced similar problems, and if there is any 
solution to this. Especially if you want to compare two different genes, this 
varying efficiencies really make it a mess.

I hope someone has an answer to this problem.

	Greetings,

	Nick

Laboratory of Molecular Biology
University of Gent
BELGIUM
Nick at lmb1.rug.ac.be