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Homogeneous methods for nucleic acid amplification and detection

  • US 5,994,056 A
  • Filed: 05/02/1991
  • Issued: 11/30/1999
  • Est. Priority Date: 05/02/1991
  • Status: Expired due to Term
First Claim
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1. A method for detecting a target nucleic acid in a sample, said method comprising:

  • (a) providing a DNA amplification reaction mixture that comprises said sample, a DNA binding agent, wherein said agent is characterized as providing a detectable signal when bound to double-stranded DNA which signal is greater than the amount of said signal provided by said agent when it is unbound, and wherein said agent does not significantly inhibit the rate of nucleic acid amplification and reagents for amplification;

    (b) determining the amount of said signal produced by the mixture of step (a);

    (c) treating said mixture under conditions for amplifying said target nucleic acid to produce amplified double-stranded DNA;

    (d) determining the amount of said signal produced by said mixture of step (c); and

    (e) determining if amplification has occurred.

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