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PCR products generated from unpurified Salmonella DNA are degraded by thermostable nuclease activity

PCR products generated from unpurified Salmonella DNA are degraded by thermostable nuclease activity Oligonucleotide primers designed from repetitive extragenic palindromic (REP) sequences were used to PCR‐amplify Salmonella DNA. Unpurified template DNA, present in crude cell extracts, yielded an essentially identical banding pattern to that arising from the use of purified DNA. However, the PCR product derived from the crude preparations did not survive storage at 4°C. This post‐PCR DNA degradation, attributed to endogenous Salmonella nucleases, was inhibited by the addition of EDTA. or storage at ‐20°C. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Letters in Applied Microbiology Oxford University Press

PCR products generated from unpurified Salmonella DNA are degraded by thermostable nuclease activity

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References (8)

Publisher
Oxford University Press
Copyright
Copyright © 1993 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0266-8254
eISSN
1472-765X
DOI
10.1111/j.1472-765x.1993.tb00342.x
Publisher site
See Article on Publisher Site

Abstract

Oligonucleotide primers designed from repetitive extragenic palindromic (REP) sequences were used to PCR‐amplify Salmonella DNA. Unpurified template DNA, present in crude cell extracts, yielded an essentially identical banding pattern to that arising from the use of purified DNA. However, the PCR product derived from the crude preparations did not survive storage at 4°C. This post‐PCR DNA degradation, attributed to endogenous Salmonella nucleases, was inhibited by the addition of EDTA. or storage at ‐20°C.

Journal

Letters in Applied MicrobiologyOxford University Press

Published: Feb 1, 1993

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