Oligonucleotides labeled with a plurality of fluorophores

Details Oligonucleotides labeled with a plurality of fluorophores Oligonucleotides labeled with a plurality of fluorophores

2004-11-19

2010-02-23

Strzelecka, Teresa E (Department: 1637)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C536S024330, C435S006120, C435S091200, C435S975000

Reexamination Certificate

active

07667024

ABSTRACT:
An embodiment of the invention discloses new methods for designing labeled nucleic acid probes and primers by labeling oligonucleotides with a plurality of spectrally identical or similar dyes and optionally with one or more quencher dyes. Oligonucleotides labeled in accordance with some embodiments of the invention exhibit a detectable increase in signal, for example, fluorescent signal when the labeling dyes are separated from one another. Methods for separating the dye include cleaving the labeled oligonucleotides include using enzymes that have 5′-exonuclease activity. In one embodiment nucleic acid primers of the present invention may fluoresce upon hybridization to a target sequence and incorporation into the amplification product. Nucleic acid probes and primers of the present invention have wide applications ranging from general detection of a target nucleic acid sequence to clinical diagnostics. Major advantages of the oligonucleotides including nucleic acid probes and primers of many embodiments of the present invention are their synthetic simplicity, spectral versatility and superior fluorescent signal.

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