Selection probe amplification
First Claim
1. A method of isolating target nucleic acid sequences from a nucleic acid sample, the method comprising:
- (a) generating nucleic acid fragments from the sample;
(b) amplifying the nucleic acid fragments;
(c) exposing the amplified nucleic acid fragments to at least about 2,000 distinct selection probes in a single reaction medium under conditions promoting annealing between the selection probes and the amplified nucleic acid fragments that are complementary to the selection probes, wherein the selection probes have sequences complementary to the target nucleic acid sequences;
(d) removing the amplified nucleic acid fragments that are not strongly bound to the selection probes; and
(e) releasing annealed amplified nucleic acid fragments from the selection probes, wherein said annealed amplified nucleic acid fragments are said target nucleic acid sequences, thereby isolating said target nucleic acid sequences.
2 Assignments
0 Petitions
Accused Products
Abstract
Multiple unique selection probes are provided in a single medium. Each selection probe has a sequence that is complementary to a unique target sequence that may be present in a sample under consideration. For example, each selection probe may be complementary to a sequence that includes one of the SNPs used to genotype an organism. Single-stranded selection probes anneal or hybridize with sample sequences having the unique target sequences specified by the selection probe sequences. Sequences from the sample that do not anneal or hybridize with the selection probes are separated from the bound sequences by an appropriate technique. The bound sequences can then be freed to provide a mixture of isolated target sequences, which can be used as needed for the application at hand.
93 Citations
40 Claims
-
1. A method of isolating target nucleic acid sequences from a nucleic acid sample, the method comprising:
-
(a) generating nucleic acid fragments from the sample;
(b) amplifying the nucleic acid fragments;
(c) exposing the amplified nucleic acid fragments to at least about 2,000 distinct selection probes in a single reaction medium under conditions promoting annealing between the selection probes and the amplified nucleic acid fragments that are complementary to the selection probes, wherein the selection probes have sequences complementary to the target nucleic acid sequences;
(d) removing the amplified nucleic acid fragments that are not strongly bound to the selection probes; and
(e) releasing annealed amplified nucleic acid fragments from the selection probes, wherein said annealed amplified nucleic acid fragments are said target nucleic acid sequences, thereby isolating said target nucleic acid sequences. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
-
24. A method of isolating target nucleic acid fragments from a mixture of target and non-target nucleic acid fragments, the method comprising:
-
(a) applying an adaptor sequence to the ends of the target and non-target nucleic acid fragments in the mixture, wherein the adaptor sequence comprises a sequence between about 15 and 40 base pairs in length, and is present in excess to the number of nucleic acid fragment ends;
(b) performing a polymerase chain reaction to amplify the target and non-target fragments, wherein no primer sequence is necessary to amplify the target and non-target fragments besides that provided by denaturing excess adaptors;
(c) contacting the amplified target and non-target fragments with a plurality of selection probes simultaneously, under conditions that promote annealing of the selection probes and the target nucleic acid fragments, wherein the selection probes comprise sequences complementary to sequences of the target nucleic acid fragments; and
(d) separating the non-annealed and partially-annealed non-target nucleic acid fragments from the annealed target nucleic acid fragments, which are bound to said selection probes, thereby isolating the target nucleic acid fragments. - View Dependent Claims (25, 26, 27, 28, 29)
-
-
30. A set of selection probes for use in simultaneously selecting target nucleic acid fragments from non-target nucleic acid fragments, wherein the set comprises:
-
at least about 10,000 distinct selection probes in a common medium, each selection probe having a sequence complementary to a distinct target sequence including a distinct SNP, all found in a single genome, wherein each of the distinct selection probes is between about 20 and 1000 base pairs in length. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
-
Specification