Small nucleic acid detection probes and uses thereof
First Claim
1. A detector probe comprising (a) a target-complementary portion, (b) a reporter group, and (c) a first stem-loop structure, wherein (i) the first stem-loop structure comprises a first segment, a second segment, and a third segment, (ii) the second segment is located between the first segment and the third segment, and (iii) the first segment and the third segment are complementary with each other.
9 Assignments
0 Petitions
Accused Products
Abstract
The present teachings are directed to compositions, methods, and kits for detecting and quantitating small nucleic acid molecules, including small DNA molecules and small RNA molecules. The detector probes of the current teachings, including single-loop detector probes, double-loop detector probes, and bimolecular detector probes, are designed to selectively hybridize with a corresponding small nucleic acid target and to produce, under appropriate conditions, a detectable signal or a detectably different signal. The detector complexes of the current teachings comprise a detector probe comprising a first reporter group and a displaceable sequence comprising a second reporter group, wherein the displaceable sequence is hybridized to the detector probe. According to certain methods, detecting a small nucleic acid target comprises the target displacing the displaceable sequence of a detector complex to form a detector probe-small nucleic acid target duplex, illuminating the duplex with light of an appropriate wavelength, and determining the presence of a detectable fluorescent signal or the change in a detectable signal.
-
Citations
41 Claims
- 1. A detector probe comprising (a) a target-complementary portion, (b) a reporter group, and (c) a first stem-loop structure, wherein (i) the first stem-loop structure comprises a first segment, a second segment, and a third segment, (ii) the second segment is located between the first segment and the third segment, and (iii) the first segment and the third segment are complementary with each other.
-
7. A bimolecular detector probe comprising, (a) a first component comprising (i) a first target-complementary portion and (ii) a first reporter group and (b) a second component comprising (i) a second target-complementary portion and (ii) a second reporter group.
-
8. A detector complex comprising:
- (1) a detector probe comprising (a) a target-complementary portion, (b) a reporter group, and (c) a first stem-loop structure, wherein (i) the first stem-loop structure comprises a first segment, a second segment, and a third segment, (ii) the second segment is located between the first segment and the third segment, and (iii) the first segment and the third segment are complementary with each other; and
(2) a displaceable sequence comprising a second reporter group, wherein the displaceable sequence is annealed to the detector probe. - View Dependent Claims (9)
- (1) a detector probe comprising (a) a target-complementary portion, (b) a reporter group, and (c) a first stem-loop structure, wherein (i) the first stem-loop structure comprises a first segment, a second segment, and a third segment, (ii) the second segment is located between the first segment and the third segment, and (iii) the first segment and the third segment are complementary with each other; and
-
10. A method for detecting a small nucleic acid sequence comprising:
-
combining a detector complex with a sample, wherein the detector complex comprises (a) a detector probe comprising (i) a target-complementary portion and (ii) a first reporter group and (b) a displaceable sequence comprising a second reporter group, and wherein the detector probe is annealed with the displaceable sequence;
displacing the displaceable sequence of the detector complex and annealing a small nucleic acid sequence with the detector probe to form a duplex; and
detecting the detector probe-small nucleic acid sequence duplex. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. A method for detecting a small nucleic acid sequence comprising:
-
combining a detector probe with a sample, wherein the detector probe comprises (a) a target-complementary portion, (b) a reporter group, and (c) a first stem-loop structure, wherein (i) the first stem-loop structure comprises a first segment, a second segment, and a third segment, (ii) the second segment is located between the first segment and the third segment, and (iii) the first segment and the third segment are complementary, and wherein the reporter group comprises a tether and an intercalating dye molecule;
annealing the small nucleic acid sequence with the detector probe to form a detector probe-small nucleic acid sequence duplex; and
detecting the detector probe-small nucleic acid sequence duplex. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. A method for detecting a small nucleic acid sequence comprising:
-
combining a bimolecular detector probe with a sample, wherein the bimolecular detector probe comprises, (a) a first component comprising (i) a first target-complementary portion and (ii) a first reporter group and (b) a second component comprising (i) a second target-complementary portion and (ii) a second reporter group;
annealing the small nucleic acid sequence with the two components of the bimolecular probe to form a trimolecular complex; and
detecting the trimolecular complex. - View Dependent Claims (30, 31, 32, 33, 34)
-
- 35. A kit comprising a detector complex comprising a detector probe and a displaceable sequence.
-
38. A kit comprising a detector probe that comprises:
- (a) a target-complementary portion, (b) a reporter group, and (c) a first stem-loop structure, wherein (i) the first stem-loop structure comprises a first segment, a second segment, and a third segment, (ii) the second segment is located between the first segment and the third segment, and (iii) the first segment and the third segment are complementary with each other, wherein the reporter group comprises a tether and an intercalating dye molecule.
- View Dependent Claims (39)
-
40. A kit comprising a bimolecular detector probe comprising:
- (a) a first component comprising (i) a first target-complementary portion and (ii) a first reporter group; and
(b) a second component comprising (i) a second target-complementary portion and (ii) a second reporter group. - View Dependent Claims (41)
- (a) a first component comprising (i) a first target-complementary portion and (ii) a first reporter group; and
Specification