Hybridization assay using self-quenching fluorescence probe

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

435 5, 435 911, 435 912, 536 243, 536 2432, 536 2433, 536 253, 536 2532, 536 266, C12Q 168, C07H 2104, C07H 2100, C07H 1904

Patent

active

060307870

ABSTRACT:
A hybridization assay is provided which uses an oligonucleotide probe which includes a fluorescent reporter molecule and a quencher molecule capable of quenching the fluorescence of the reporter molecule. The oligonucleotide probe is constructed such that the probe exists in at least one single-stranded conformation when unhybridized where the quencher molecule is near enough to the reporter molecule to quench the fluorescence of the reporter molecule. The oligonucleotide probe also exists in at least one conformation when hybridized to a target polynucleotide where the quencher molecule is not positioned close enough to the reporter molecule to quench the fluorescence of the reporter molecule. By adopting these hybridized and unhybridized conformations, the reporter molecule and quencher molecule on the probe exhibits different fluorescence signal intensities when the probe is hybridized and unhybridized. As a result, it is possible to determine whether the probe is hybridized or unhybridized based on a change in the fluorescence intensity of the reporter molecule, the quencher molecule, or a combination thereof. In addition, because the probe can be designed such that the quencher molecule quenches the reporter molecule when the probe is not hybridized, the probe can be designed such that the reporter molecule exhibits limited fluorescence until the probe is either hybridized or digested.

REFERENCES:
patent: 4220450 (1980-09-01), Maggio
patent: 5210015 (1993-05-01), Gelfand et al.
patent: 5332659 (1994-07-01), Kidwell
patent: 5491063 (1996-02-01), Fisher et al.
patent: 5876930 (1999-03-01), Livak et al.
Ju, Jingyue et al., "Design and Synthesis of Fluorescence Energy Transfer Dye-Labeled Primers and their Application for DNA Sequencing and Analysis", Analytical Biochemistry, vol. 231, pp. 131-140 (1995).
Database WPI, Sect. Ch, Wk. 8608, Derwent Publ., Ltd., London, GB, Jan. 1986.
Z. Guo et al., "Direct Fluoresc. Analysis of Genetic Polymorph, by Hybrid. with Oligonucleotide Arrays on Glass Supports", Nucleic Acids Research, 1994, vol. 22, No. 24, pp. 5456-5465.
S. Tyagi et al., "Molecular Beacons: Probes that Fluoresce upon Hybridization", Dept. of Molecular Genetics, Public Health Research Institute, New York, N. Y., Aug. 25, 1995, 25 pages.
Parkhurst et al., "Kinetic Studies by Fluorescence Resonance Energy Transfer Employing a Double-Labeled Oligonucleotide: Hybridization to the Oligonucleotide Complement and to Single-Stranded DNA", Biochemistry, vol. 34, (1995), pp. 285-292.
Mergny et al., "Fluorescent energy transfer as a probe for nucleic acid structures and sequences", Nucleic Acids Research, vol. 22, pp. 920-928, (1994).
Heller et al., "Fluorescent energy transfer oligonucleotide probes", Abstract 248, Fed. Proc. 46: 1968 (1987).
Holland et al., "Detection of specific polymerase chain reaction product by utilizing the 5'.fwdarw.3' exonuclease activity of Thermus aquaticus DNA polymerase", Proc. Natl. Acad. Sci., vol. 88, pp. 7276-7280, (1991).
Higuchi et al., "Kinetic PCR analysis: real-time monitoring of DNA amplification reactions", Biotechnology, vol. 11, pp. 1026-1030, (1993).
Higuchi et al., "Simultaneous amplification and detection of specific DNA sequences", Biotechnology, vol. 10, pp. 413-417, (1992).
Clegg, "Fluorescence resonance energy transfer and nucleic acids". Methods of Enzymology, vol. 211, pp. 353-389 (1992).
Wu et al., "Resonance energy transfer: methods and applications", Anal. Biochem., vol. 218, pp. 1-13 (1994).
Stryer et al., "Energy transfer: a spectroscopic ruler", Proc. Natl. Acad. Sci., vol. 58, pp. 719-726 (1967).
Clegg et al., "Observing the helical geometry of double-stranded DNA in solution by fluorescence resonance energy transfer", Proc. Natl. Acad. Sci., vol. 90, pp. 2994-2998 (1993).
Cardullo et al., "Detection of nucleic acid hybridization by nonradiative fluorescence resonance energy transfer", Proc. Natl. Acad. Sci., vol. 85, pp. 8790-8794 (1988).
Ozaki et al., "The estimation of distances between specific backbone-labeled sites in DNA using fluorescence resonance energy transfer", Nucleic Acids Research, vol. 20, pp. 5205-5214 (1992).
Livak et al. "Oligonucleotides with fluorescent dyes at opposite ends provide a quenched probe system useful for detecting PCR product and nucleic acid hybridization" PCR Methods and Applications, pp. 357-362, 1995.
Lee et al. "Allelic discrimination by nick-translation PCR with fluorogenic probes" Nucleic acids Research, vol. 21, No. 16, pp. 3761-3766, 1993.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Hybridization assay using self-quenching fluorescence probe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hybridization assay using self-quenching fluorescence probe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hybridization assay using self-quenching fluorescence probe will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-681647

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.