NOVEL MUTS PROTEIN AND METHOD FOR DETERMING MUTATION USING THE SAME
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United States of America Patent
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Issued Date -
Sep 29, 2011
app pub date -
Nov 27, 2009
filing date -
Nov 27, 2008
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Abstract
A method for determining the presence or absence of a mutation on the basis of the presence or absence of amplification with high reliability is provided. A target sequence including a target site contained in a sample nucleic acid is amplified using a primer that can hybridize to a region including the target site contained in the sample nucleic acid in the presence of a novel MutS having an amino acid sequence of SEQ ID NO: 2, and then the presence or absence of a mutation at the target site is determined on the basis of the presence or absence of amplification. The novel MutS binds more specifically to a mismatched base pair than to a fully-matched base pair, whereby an extension reaction caused by a mismatch-binding primer is suppressed. Thus, according to the present invention, the presence or absence of a mutation can be determined with high reliability.
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