Optimized chemiluminescent detection of DNA amplified in the exponential phase of PCR

Su, X.; Sullivan, T.F.; Bursztajn, S.; Berman, S.A.

Biotechniques 17(4): 734-736

1994


ISSN/ISBN: 0736-6205
PMID: 7833037
Document Number: 437580
We describe a procedure for quantitative detection of nucleic acids by coupling PCR with improved chemiluminescent detection techniques. After performing PCR in the exponential phase in the presence of a trace amount of digoxigenin-11-dUTP the amplified products are transferred to a positively charged nylon membrane. The membrane is cleaned with a modified method involving sodium dodecyl sulfate and ethanol washing steps to ensure low backgrounds in chemiluminescent detection. The membrane is exposed to two stacked times -ray films to increase the dynamic response in a film exposure. This sensitive and quantitative procedure is useful for molecular biology studies.

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