Nuclease protection methods for detection of nucleotide variants
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United States of America Patent
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Sep 19, 2017
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Jun 28, 2013
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Jun 29, 2012
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Abstract
Disclosed herein are methods for detecting presence of a nucleotide variant in a target nucleic acid utilizing a nuclease protection assay. The methods include contacting a sample with at least two probes, wherein the first probe is complementary to the wild-type (non-variant) nucleotide(s) at the nucleotide variant position(s) in the target nucleic acid and the second probe is complementary to the variant nucleotide(s) at the nucleotide variant position(s) in the target nucleic acid, under conditions sufficient for the probes to hybridize to the target nucleic acid, producing a mixture of hybridized and unhybridized nucleic acids. The mixture is contacted with a nuclease specific for single-stranded nucleic acid molecules under conditions sufficient to remove unhybridized nucleic acid molecules (or unhybridized portions of nucleic acid molecules). The presence of the at least two probes is then detected, thereby detecting the presence of the variant and/or non-variant target nucleic acid in the sample.
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