Colorimetric in situ hybridization detection methods
First Claim
1. A method for genomic subtractive hybridization, comprising:
- hybridizing a chemically modified oligonucleotide probe to a complementary nucleic acid sequence in a nucleic acid sample, wherein the chemically modified oligonucleotide probe is an oligonucleotide associated with a target molecule, and selectively removing the chemically modified oligonucleotide probe and complementary nucleic acid by selectively contacting the target molecule with a binding partner to produce binding partner/target conjugates and separating the binding partner and binding partner/target conjugates from the nucleic acid sample.
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Abstract
The invention is a method for genomic subtractive hybridization. Specific nucleic acid sequences are removed from a sample of nucleic acid sequences by specifically hybridizing the sequences to a complementary nucleic acid sequence bound to a target molecule such as biotin. The target molecule is then contacted with a binding partner such as avidin and separated from the sample of nucleic acid sequences. As the target is separated from the sample the hybridized nucleic acid sequences are also removed from the sample. The method preferably involves the removal of repetitive nucleic acid sequences from a nucleic acid sample to generate a library of probes that are substantially free of repetitive nucleic acid sequences.
29 Citations
17 Claims
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1. A method for genomic subtractive hybridization, comprising:
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hybridizing a chemically modified oligonucleotide probe to a complementary nucleic acid sequence in a nucleic acid sample, wherein the chemically modified oligonucleotide probe is an oligonucleotide associated with a target molecule, and selectively removing the chemically modified oligonucleotide probe and complementary nucleic acid by selectively contacting the target molecule with a binding partner to produce binding partner/target conjugates and separating the binding partner and binding partner/target conjugates from the nucleic acid sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A library of nucleic acid probes for use in in situ hybridization methods, comprising:
a heterogenous mixture of labeled nucleic acid probes that are substantially complementary to unique nucleic acid fragments and are substantially free of repetitive nucleic acid sequences, and which are produced by the process of;
(a) obtaining genomic nucleic acid fragments;
(b) amplifying the genomic nucleic acid fragments;
(c) hybridizing a chemically modified oligonucleotide probe to a complementary nucleic acid sequence in the genomic nucleic acid fragments, wherein the chemically modified oligonucleotide probe is an oligonucleotide associated with a target molecule;
(d) selectively removing the chemically modified oligonucleotide probe and complementary nucleic acid by selectively contacting the target molecule with a binding partner and separating the binding partner and binding partner/target conjugates from the genomic nucleic acid fragments; and
(e) labeling the genomic nucleic acid fragments with a label. - View Dependent Claims (13, 14, 15, 16, 17)
Specification