Individually synthesized primers to be used in whole genome amplification
First Claim
1. An in vitro method of randomly amplifying a target nucleic acid sequence, the method comprising, bringing into contact a DNA polymerase, a target sample, and a set of random G-deficient primers, and incubating the target sample under conditions that promote replication of the target sequence, wherein replication of the target sequence results in replicated strands, wherein all of the primers of the primer set:
- a. are exonuclease-resistant,b. have at least one guanine residue,c. do not contain two or more consecutive guanine residues at the 3′
end, andd. do not comprise three or more consecutive guanine residues.
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Accused Products
Abstract
Disclosed are compositions and methods for random amplification of nucleic acid sequences of interest using random-G-deficient primers. Also disclosed are methods of randomly amplifying a target nucleic acid sequence using random G-deficient primers alone or in combination with random, partially random, or specific primers.
16 Citations
23 Claims
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1. An in vitro method of randomly amplifying a target nucleic acid sequence, the method comprising, bringing into contact a DNA polymerase, a target sample, and a set of random G-deficient primers, and incubating the target sample under conditions that promote replication of the target sequence, wherein replication of the target sequence results in replicated strands, wherein all of the primers of the primer set:
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a. are exonuclease-resistant, b. have at least one guanine residue, c. do not contain two or more consecutive guanine residues at the 3′
end, andd. do not comprise three or more consecutive guanine residues. - View Dependent Claims (2, 3, 4, 5, 6, 8, 19, 20)
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7. The method of claim wherein the conditions that promote replication of the target sequence are substantially isothermic.
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9. The method of claim further comprising:
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diluting the replicated strands, contacting the diluted replicated strands with a second set of primers and DNA polymerase, and incubating the replicated strands under conditions that promote replication of the target sequence, wherein replication of the target sequence results in additional replicated strands, wherein during replication at least one of the additional replicated strands is displaced from the target sequence by strand displacement replication of another additional replicated strand. - View Dependent Claims (10)
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11. A method of randomly amplifying a target nucleic acid sequence, the method comprising, bringing into contact a DNA polymerase, a target sample, and a set of random G-deficient primers, and incubating the target sample under conditions that promote replication of the target sequence, wherein nucleic acids in the target sample are not separated from other material in the target sample, wherein all of the primers of the primer set:
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a. are exonuclease-resistant, b. have at least one guanine residue, c. do not contain two or more consecutive guanine residues at the 3′
end, andd. do not comprise three or more consecutive guanine residues. - View Dependent Claims (12, 13)
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14. A method of randomly amplifying messenger RNA, the method comprising,
reverse transcribing messenger RNA to produce a first strand cDNA, bringing into contact a set of random G-deficient primers, DNA polymerase, and the first strand cDNA, and incubating under conditions that promote replication of the first strand cDNA, wherein replication of the first strand cDNA results in replicated strands, wherein during replication at least one of the replicated strands is displaced from the first strand cDNA by strand displacement replication of another replicated strand, and wherein all of the primers of the primer set: -
a. are exonuclease-resistant, b. have at least one guanine residue, c. do not contain two or more consecutive guanine residues at the 3′
end, andd. do not comprise three or more consecutive guanine residues.
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15. A method of randomly amplifying a target nucleic acid sequence, the method comprising,
(a) mixing a set of random G-deficient primers with a target sample, to produce a primer-target sample mixture, and incubating the primer-target sample mixture under conditions that promote hybridization between the random G-deficient primers and the target sequence in the primer-target sample mixture, wherein all of the primers of the primer set are exonuclease-resistant, have at least one guanine residue, do not contain two or more consecutive guanine residues at the 3′ - end, and do not comprise three or more consecutive guanine residues; and
(b) mixing DNA polymerase with the primer-target sample mixture, to produce a polymerase-target sample mixture, and incubating the polymerase-target sample mixture under conditions that promote replication of the target sequence, wherein replication of the target sequence results in replicated strands, wherein during replication at least one of the replicated strands is displaced from the target sequence by strand displacement replication of another replicated strand, wherein the target sequence is a nucleic acid sample of substantial complexity. - View Dependent Claims (16, 17, 18)
- end, and do not comprise three or more consecutive guanine residues; and
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21. A kit comprising a lysis solution, a stabilization solution, a DNA polymerase, and a set of random G-deficient primers, wherein all of the primers of the primer set:
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a. are exonuclease-resistant, b. have at least one guanine residue, c. do not contain two or more consecutive guanine residues at the 3′
end, andd. do not comprise three or more consecutive guanine residues. - View Dependent Claims (22, 23)
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Specification