Competitive oligonucleotides
First Claim
1. An article, comprising:
- a blocking composition, constructed and arranged to be used in an assay of a nucleic acid, the blocking composition comprising a solution comprising a plurality of oligonucleotides, including at least a first oligonucleotide and a second oligonucleotide different from the first oligonucleotide, wherein each of the first and second oligonucleotides comprises respective first and second sequences each selected to hybridize to the nucleic acid used in the assay.
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Accused Products
Abstract
The present invention generally relates to competitive oligonucleotides and, in some embodiments, to competitive oligonucleotides for use in comparative genomic hybridization (CGH) and related techniques. One aspect is generally directed to a blocking composition constructed and arranged to be used in an assay of a nucleic acid. The blocking composition may comprise oligonucleotides comprising sequences selected to hybridize to the nucleic acid used in the assay. Another aspect is generally directed to performing CGH assays and similar techniques on genomic DNA, in the absence of a Cot-1 fraction, such that the genomic DNA does not substantially cross-hybridize. Yet other aspects of the invention are directed to devices or kits for making or using competitive oligonucleotides, methods of promoting such competitive oligonucleotides, or the like.
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Citations
20 Claims
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1. An article, comprising:
a blocking composition, constructed and arranged to be used in an assay of a nucleic acid, the blocking composition comprising a solution comprising a plurality of oligonucleotides, including at least a first oligonucleotide and a second oligonucleotide different from the first oligonucleotide, wherein each of the first and second oligonucleotides comprises respective first and second sequences each selected to hybridize to the nucleic acid used in the assay. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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providing a sample comprising a nucleic acid; exposing the sample to a blocking composition comprising a plurality of oligonucleotides, including at least a first oligonucleotide and a second oligonucleotide different from the first oligonucleotide, wherein each of the first and second oligonucleotides comprises respective first and second sequences each selected to hybridize to the nucleic acid. - View Dependent Claims (9, 10)
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11. A method of blocking at least a portion of a genome, comprising:
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identifying a nucleic acid sequence; and designing at least a first oligonucleotide and a second oligonucleotide different from the first oligonucleotide, wherein each of the first and second oligonucleotides comprises respective first and second sequences each selected to hybridize the nucleic acid. - View Dependent Claims (12, 13)
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14. A kit for use within an assay of a nucleic acid to block at least a portion of a nucleic acid, the kit comprising:
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a first oligonucleotide; and a second oligonucleotide different from the first oligonucleotide, wherein each of the first and second oligonucleotides comprises respective first and second sequences each selected to hybridize a sequence that is suspected be present within the nucleic acid.
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15. A method of performing comparative genomic hybridization (CGH), comprising acts of:
performing a CGH assay on a genomic DNA sample, in the absence of a Cot-1 fraction, such that the genomic DNA does not substantially cross-hybridize. - View Dependent Claims (16, 17)
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18. A method of performing comparative genomic hybridization (CGH), comprising acts of:
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exposing a sample comprising genomic DNA to a plurality of synthetic oligonucleotides, at least some of which are not identical; and performing a CGH assay on the sample such that the DNA does not substantially cross-hybridize.
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19. An article, comprising:
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a solution comprising a plurality of oligonucleotides, at least some of which are not identical, wherein, for at least some of the plurality of oligonucleotides, each of the oligonucleotides of the at least some oligonucleotides comprises at least two copies of a repetitive sequence. - View Dependent Claims (20)
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Specification