Quantitative methylation detection in DNA samples

Details Quantitative methylation detection in DNA samples Quantitative methylation detection in DNA samples

2005-11-01

2005-11-01

Whisenant, Ethan (Department: 1634)

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving nucleic acid

C536S023100, C536S024300

Reexamination Certificate

active

06960436

ABSTRACT:
Described is a method for methylation detection in a DNA sample. An isolated genomic DNA sample is treated in a manner capable of distinguishing methylated from unmethylated cytosine bases. The pretreated DNA is amplified using at least one oligonucleotide primer, a polymerase and a set of nucleotides of which at least one is labeled with a first type of label. A sequence-specific oligonucleotide probe, marked with a second type of label, hybridizes to the amplification product and a FRET reaction occurs if a labeled oligonucleotide is present in close proximity in the amplification product. The method determines the level of methylation of a sample by measuring the extent of fluorescence resonance energy transfer (FRET) between the donor and acceptor fluorophore.

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