Nucleic acid amplification methods
First Claim
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1. A method for detection of a target nucleic acid within a cell comprising the steps of:
- (a) embedding the cell to be analyzed for the presence of the target nucleic acid within a matrix;
(b) adding a circularizable Amp-probe-2 having 3′ and
5′
regions that are complementary to adjacent but noncontiguous sequences in the target nucleic acid, said 3′ and
5′
regions separated by a linker region that is neither complementary nor hybridizable to a nucleotide sequence in the target nucleic acid such that a complex is formed comprising the target nucleic acid and Amp-probe-2;
(c) ligating the 3′ and
5′
ends of said circularizable Amp-probe-2 with a ligating agent that joins nucleotide sequences such that a circular Amp-probe-2 is formed;
(d) washing said complex; and
(e) detecting said complex, wherein the detection thereof indicates the presence of the target nucleic acid in the embedded cell.
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Abstract
The present invention relates to assays and kits for carrying out said assays for the rapid, automated detection of infectious pathogenic agents and normal and abnormal genes. The present invention further relates to methods for general amplification of genomic DNA and total mRNAs and for analyzing differential mRNA expression using the amplification methods disclosed herein.
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Citations
13 Claims
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1. A method for detection of a target nucleic acid within a cell comprising the steps of:
-
(a) embedding the cell to be analyzed for the presence of the target nucleic acid within a matrix;
(b) adding a circularizable Amp-probe-2 having 3′ and
5′
regions that are complementary to adjacent but noncontiguous sequences in the target nucleic acid, said 3′ and
5′
regions separated by a linker region that is neither complementary nor hybridizable to a nucleotide sequence in the target nucleic acid such that a complex is formed comprising the target nucleic acid and Amp-probe-2;
(c) ligating the 3′ and
5′
ends of said circularizable Amp-probe-2 with a ligating agent that joins nucleotide sequences such that a circular Amp-probe-2 is formed;
(d) washing said complex; and
(e) detecting said complex, wherein the detection thereof indicates the presence of the target nucleic acid in the embedded cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification