HELP! Genomic DNA not cutting!
Richard E. Showalter
show at agouron.com
Fri May 19 14:41:20 EST 1995
In article <S.Rowland-1505952146120001 at 188.8.131.52>,
S.Rowland at auckland.ac.nz (Shelley Rowland) wrote:
> In article <1995May11.191903.7840 at mcrcr6>, galinm01 at mcrcr6.med.nyu.edu wrote:
> > Hello!
> > Seeking suggestions on "how to" "clean-up" genomic DNA that
> > refuses to digest with restriction enzymes. Repeated phenol/chloroform
> > extractions have not helped.
> > This DNA sample is semi-precious. Will be grateful for advice and comments.
> We digest genomic DNA routinly from many sources some alot cruder than
> others and have encountered this problem, dont dispair it is easily fixed!
> when we had this problem I talked to a friend who was involved in forensic
> DNA fingerprinting and he told me how to fix this problem by dialysis.
<cuts on great suggestion>
Amicon makes a spin dialysis device called a Centricon-100 that is perfect
for "cleaning" up chromosomal DNA. It is a mainstay in most Forensic DNA
labs in the US who have to deal with "precious" DNA samples that don't
like to cut. Give them a try, I don't think that you will be disapointed
in the results! Just a happy customer.
Richard E. Showalter "Hey Hey Hey Hey it was
Senior Associate Scientist the DNA. Hey Hey Hey Hey
Agouron Pharmaceuticals, Inc. that made me this way."
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