Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid
Patent
1992-08-21
1995-01-03
Wu, Shean
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving nucleic acid
935 77, 935 78, C12Q 168, C12Q 100
Patent
active
H00013986
ABSTRACT:
The fluorescent detection of target DNA is enhanced by amplifying the DNA in a sample by initiating a polymerase chain reaction using a first pair of primers and an appropriate polymerase. The DNA is then reamplified, this time using a second pair of nested primers which bracket DNA base sequences within the region bracketed by the first set of primers. At least one of the second pair of primers is bound to a fluorescent reporter molecule and at least one of the second pair of primers has bound thereto a specific binding site for a double-stranded DNA-binding protein. The thus amplified sample is then contacted with a fluorescent sensor having the appropriate double-stranded DNA-binding protein attached thereto. Then, the fluorescent reporter molecule is excited by light of the appropriate wavelength. The present invention provides greater sensitivity, adaptability and ease of use than previously available.
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