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Primer extension methods for detecting nucleic acids

  • US 6,566,101 B1
  • Filed: 04/27/1998
  • Issued: 05/20/2003
  • Est. Priority Date: 06/16/1997
  • Status: Expired due to Term
First Claim
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1. A method for identifying a single nucleotide in a nucleic acid sample, the method comprising the steps of:

  • (a) annealing an oligonucleotide primer to a nucleic acid sample under conditions that promote exact complementary hybridization between said primer and a portion of a nucleic acid in said sample;

    (b) extending said primer by a single base, wherein said extension reaction is performed in an extension solution comprising at least two different nucleotides;

    (c) separating said extended primer from said portion;

    (d) repeating steps (a) through (c) at least once; and

    (e) identifying said base incorporated into said extended primer in step (b), thereby to identify said single nucleotide.

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