ethanol precipitation

[Mike Poidinger]

wrt EtOh pptn and AmOAc salting, 

Am ions severely inhibit polynucleotide kinase, 

are there any other salts which have similar effects
 on other commonly used enzymes? I include in this 
category salts which co ppt with the DNA and thence inhibit enzymes.

BTW, I only ever use NaAc for ppting DNA

Mike Poidinger
Dept of Microbiology
University of Reading

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