Triplex probe compositions and methods for polynucleotide detection
First Claim
1. An oligonucleotide probe complex, comprising:
- a first oligonucleotide probe and a second oligonucleotide probe, wherein at least one of said first or second oligonucleotide probes binds to a target nucleic acid, wherein each of said first and second oligonucleotide probes comprise a member of an interactive pair of labels; and
a bridging oligonucleotide probe, wherein said bridging oligonucleotide probe binds to at least a portion of each of said first and second oligonucleotide probes, and wherein said members of the interactive pair of labels are in close proximity when bound to the bridging oligonucleotide probe.
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Abstract
The present invention provides composition and methods for the detection and measurement of target nucleic acids. The probes of the present invention, or triplex probes, comprise a complex of three oligonucleotide probes including: (1) a first oligonucleotide probe, (2) a second oligonucleotide probe, and (3) a bridging oligonucleotide probe. In most aspects of the invention, the first and second oligonucleotide probes preferentially hybridize to the bridging oligonucleotide in the absence of a target nucleic acid. The first oligonucleotide probe contains one member of an interactive pair of labels and the second oligonucleotide probe contains the other member of the interactive pair of labels. Separation of the first and second oligonucleotide probes (e.g., binding to target, cleavage of first, second, or bridging oligonucleotide) generates a detectable signal indicating the presence of a target nucleic acid.
15 Citations
29 Claims
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1. An oligonucleotide probe complex, comprising:
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a first oligonucleotide probe and a second oligonucleotide probe, wherein at least one of said first or second oligonucleotide probes binds to a target nucleic acid, wherein each of said first and second oligonucleotide probes comprise a member of an interactive pair of labels; and
a bridging oligonucleotide probe, wherein said bridging oligonucleotide probe binds to at least a portion of each of said first and second oligonucleotide probes, and wherein said members of the interactive pair of labels are in close proximity when bound to the bridging oligonucleotide probe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An oligonucleotide probe complex, comprising:
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a first oligonucleotide probe and a second oligonucleotide probe, wherein at least one of said first or second oligonucleotide probes binds to a target nucleic acid, wherein each of said first and second oligonucleotide probes comprise a member of an interactive pair of labels and wherein said first and/or second probe binds to said target nucleic acid through a primer region; and
a bridging oligonucleotide probe, wherein said bridging oligonucleotide probe binds to at least a portion of each of said first and second oligonucleotide probes, and wherein said member of the interactive pair of labels are in close proximity when bound to the bridging oligonucleotide probe. - View Dependent Claims (19, 20, 21)
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22. An oligonucleotide probe complex, comprising:
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a first oligonucleotide probe and a second oligonucleotide probe, wherein each of said first and second oligonucleotide probes comprise a member of an interactive pair of labels; and
a bridging oligonucleotide probe, wherein said bridging oligonucleotide probe binds to, at least a portion of, each of said first and second oligonucleotide probes, wherein said bridging oligonucleotide probe binds to a target nucleic acid through a primer region, and wherein said member of the interactive pair of labels are in close proximity when bound to the bridging oligonucleotide probe. - View Dependent Claims (23, 24, 25)
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26. An oligonucleotide probe complex, comprising:
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a first oligonucleotide probe and a second oligonucleotide probe, wherein each of said first and second oligonucleotide probes comprise a member of an interactive pair of labels; and
a bridging oligonucleotide probe, wherein said bridging oligonucleotide probe, binds to at least a portion of each of said first and second oligonucleotide probes, wherein said bridging oligonucleotide probe binds to a target nucleic acid, and wherein said member of the interactive pair of labels are in close proximity when bound to the bridging oligonucleotide probe. - View Dependent Claims (27, 28, 29)
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Specification