Method of nucleic acid sequence selection
First Claim
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1. A method for recovering a desired target nucleic acid molecule from an initial mixture or library of nucleic acid molecules containing said molecule, wherein said method comprises the steps:
- (A) (1) where said initial mixture or library is composed of single-stranded nucleic acid molecules, performing step (B);
or (2) where said initial mixture or library is composed of double-stranded nucleic acid molecules treating said double-stranded nucleic acid molecules to render such molecules single-stranded, then performing step (B);
(B) incubating the single-stranded nucleic acid molecules of said mixture or library in the presence of a haptenylated nucleic acid probe molecule, said probe molecule comprising a unique nucleotide sequence complementary to a nucleotide sequence of said desired target molecule;
said incubation being under conditions sufficient to permit said probe to hybridize to said desired target molecule and to thereby generate a hybridized molecule wherein said desired target molecule is bound to said probe;
(C) capturing said hybridized molecule of step (B) by incubating said hybridized molecule in the presence of a binding ligand of the hapten of said haptenylated probe, said binding ligand being conjugated to a support;
said incubation being sufficient to permit said hybridized molecule to become bound to said binding ligand of said support;
(D) separating said bound hybridized desired target molecule from unbound nucleic acid molecules; and
(E) recovering said desired target molecule from said support.
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Abstract
The present invention provides a method for the rapid isolation and recovery of a desired target DNA or RNA molecules from a mixture or library containing such molecules. The method involves the use of biotinylated probes and enzymatic repair-cleavage to eliminate undesired library members from a sample.
204 Citations
44 Claims
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1. A method for recovering a desired target nucleic acid molecule from an initial mixture or library of nucleic acid molecules containing said molecule, wherein said method comprises the steps:
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(A) (1) where said initial mixture or library is composed of single-stranded nucleic acid molecules, performing step (B);
or (2) where said initial mixture or library is composed of double-stranded nucleic acid molecules treating said double-stranded nucleic acid molecules to render such molecules single-stranded, then performing step (B);(B) incubating the single-stranded nucleic acid molecules of said mixture or library in the presence of a haptenylated nucleic acid probe molecule, said probe molecule comprising a unique nucleotide sequence complementary to a nucleotide sequence of said desired target molecule;
said incubation being under conditions sufficient to permit said probe to hybridize to said desired target molecule and to thereby generate a hybridized molecule wherein said desired target molecule is bound to said probe;(C) capturing said hybridized molecule of step (B) by incubating said hybridized molecule in the presence of a binding ligand of the hapten of said haptenylated probe, said binding ligand being conjugated to a support;
said incubation being sufficient to permit said hybridized molecule to become bound to said binding ligand of said support;(D) separating said bound hybridized desired target molecule from unbound nucleic acid molecules; and (E) recovering said desired target molecule from said support. - 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, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method for recovering a desired target nucleic acid molecule from a sample comprising the steps:
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(A) incubating said sample in the presence of a haptenylated nucleic acid probe molecule, said probe molecule comprising a unique nucleotide sequence complementary to said desired target molecule;
said incubation being under conditions sufficient to permit said probe to hybridize to said desired target molecule and to thereby generate a hybridized molecule wherein the desired target molecule is bound to said probe;(B) capturing said hybridized molecule of step (A) by incubating said hybridized molecule in the presence of a binding ligand of the hapten of said haptenylated probe, said binding ligand being conjugated to a support;
said incubation being, sufficient to permit said hybridized molecule to become bound to said binding ligand of said support;(C) separating said bound hybridized desired target molecule from unbound nucleic acid molecules; (D) incubating said desired target molecule of step (C) in the presence of a primer nucleic molecule complementary to a sequence of the desired target molecule;
said incubation being under conditions sufficient to generate a double stranded desired target molecule;(E) releasing said double stranded target molecule from said solid support; and (F) transforming said double stranded desired target molecule of step (D) into a host cell. - View Dependent Claims (41, 42, 43, 44)
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Specification