Method for detecting a target nucleic acid molecule
First Claim
1. A method for detecting a target nucleic acid molecule in a nucleic acid-containing sample, comprising:
- (a) preparing a sample solution by adding said nucleic acid-containing sample, a first nucleic acid probe that has a first marker bound thereto and specifically hybridizes with a region of the target nucleic acid molecule, and a second nucleic acid probe that has a second marker bound thereto and specifically hybridizes with a region of the target nucleic acid molecule that differs from the region hybridized by the first nucleic acid probe, wherein the first marker is a luminescent substance;
(b) denaturing the target nucleic acid molecule in the sample solution prepared in step (a);
(c) allowing the target nucleic acid molecule, the first nucleic acid probe, and the second nucleic acid probe in the sample solution to associate each other after step (b);
(d) forming at least one covalent bond between the target nucleic acid molecule and the first nucleic acid probe and forming at least one covalent bond between the target nucleic acid molecule and the second nucleic acid probe, thereby forming a three-component association product comprising the target nucleic acid molecule, the first nucleic acid probe and the second nucleic acid probe;
(e) adding, after step (d), a solid phase carrier with a site that binds with the second marker to the sample solution such that the three-component association product binds to the solid phase carrier through the second marker in the three-component association product, recovering the three-component association product bound to the solid phase carrier by a solid-liquid separation procedure and forming a recovered three-component association product;
(f) releasing the first marker from the recovered three-component association product after step (e); and
(g) detecting the target nucleic acid molecule by detecting the first marker released from the recovered three-component association product after step (f).
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Accused Products
Abstract
A method for detecting a target nucleic acid comprising: forming a three-component association product by allowing the association of at least a nucleic acid molecule, a first nucleic acid probe having a first marker bound thereto, and a second nucleic acid probe having a second marker bound thereto; forming at least one covalent bond between the target nucleic acid molecule and the first nucleic acid probe and between the target nucleic acid molecule and the second nucleic acid probe; and binding the three-component association product to a solid phase carrier through the second marker; recovering the three-component association product bound to the solid phase carrier; releasing the first marker from the recovered three-component association product; and detecting the target nucleic acid molecule by detecting the free first marker.
48 Citations
11 Claims
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1. A method for detecting a target nucleic acid molecule in a nucleic acid-containing sample, comprising:
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(a) preparing a sample solution by adding said nucleic acid-containing sample, a first nucleic acid probe that has a first marker bound thereto and specifically hybridizes with a region of the target nucleic acid molecule, and a second nucleic acid probe that has a second marker bound thereto and specifically hybridizes with a region of the target nucleic acid molecule that differs from the region hybridized by the first nucleic acid probe, wherein the first marker is a luminescent substance; (b) denaturing the target nucleic acid molecule in the sample solution prepared in step (a); (c) allowing the target nucleic acid molecule, the first nucleic acid probe, and the second nucleic acid probe in the sample solution to associate each other after step (b); (d) forming at least one covalent bond between the target nucleic acid molecule and the first nucleic acid probe and forming at least one covalent bond between the target nucleic acid molecule and the second nucleic acid probe, thereby forming a three-component association product comprising the target nucleic acid molecule, the first nucleic acid probe and the second nucleic acid probe; (e) adding, after step (d), a solid phase carrier with a site that binds with the second marker to the sample solution such that the three-component association product binds to the solid phase carrier through the second marker in the three-component association product, recovering the three-component association product bound to the solid phase carrier by a solid-liquid separation procedure and forming a recovered three-component association product; (f) releasing the first marker from the recovered three-component association product after step (e); and (g) detecting the target nucleic acid molecule by detecting the first marker released from the recovered three-component association product after step (f). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for detecting a target nucleic acid molecule in a nucleic acid-containing sample, comprising:
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(a) preparing a sample solution obtained by adding said nucleic acid-containing sample, a first nucleic acid probe that has a first marker bound thereto and specifically hybridizes with a region of the target nucleic acid molecule, a second nucleic acid probe that has a second marker bound thereto and specifically hybridizes with a region of the target nucleic acid molecule that differs from the region hybridized by the first nucleic acid probe, and a solid phase carrier with a site that binds with the second marker, wherein the first marker is a luminescent substance; (b) denaturing the target nucleic acid molecule in the sample solution prepared in step (a); (c) allowing the target nucleic acid molecule, the first nucleic acid probe, and the second nucleic acid probe in the sample solution to associate each other after step (b); (d) forming at least one covalent bond between the target nucleic acid molecule and the first nucleic acid probe and forming at least one covalent bond between the target nucleic acid molecule and the second nucleic acid probe, thereby forming a three-component association product bound to the solid phase carrier comprising the target nucleic acid molecule, the first nucleic acid probe and the second nucleic acid probe; (e) recovering the three-component association product bound to the solid phase carrier by solid-liquid separation procedure and forming a recovered three-component association product; (f) releasing the first marker from the recovered three-component association product after step (e); and (g) detecting the target nucleic acid molecule by detecting the first marker released from the recovered three-component association product after step (f). - View Dependent Claims (11)
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Specification