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Method of nucleic acid amplification

  • US 9,593,328 B2
  • Filed: 01/20/2015
  • Issued: 03/14/2017
  • Est. Priority Date: 04/01/1997
  • Status: Expired due to Fees
First Claim
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1. A method for forming different modified nucleic acids in a plurality of samples from individuals, comprising:

  • providing a plurality of samples containing nucleic acids from individuals;

    amplifying the nucleic acids in the plurality of samples, wherein each of a plurality of nucleic acids in each sample of the plurality of samples is amplified with at least two primers of a plurality of primers, thereby forming different modified nucleic acids, the at least two primers comprising the first primer comprising a first sequence portion identical to or complementary to a sequence of a third primer, a second sequence portion comprising a nucleic acid tag selected from a plurality of different nucleic acid tag sequences, and a third sequence portion identical to or complementary to a portion of its corresponding nucleic acid of the plurality of nucleic acids in said each sample of the plurality of samples;

    wherein the nucleic acid tag sequence on the first primer of the at least two primers of the plurality of primers used for amplifying each sample of the plurality of samples is different;

    the second primer comprising a fourth sequence portion identical to or complementary to a sequence of a fourth primer and a fifth sequence portion identical to or complementary to a portion of its corresponding nucleic acid of the plurality of nucleic acids in said each sample of the plurality of samples;

    wherein at least the third primer or fourth primer is attached to a solid support for further amplification of the different modified nucleic acids;

    wherein the fifth sequence portion of the second primer is used to complement an extension product of the first primer produced from the amplifying step, and the third sequence portion of the first primer is used to complement an extension product of the second primer produced from the amplifying step; and

    wherein each of the modified nucleic acids amplified from one sample of the plurality of samples comprises a nucleic acid tag sequence of the plurality of different nucleic acid tag sequences that is different from a nucleic acid tag sequence of the plurality of different nucleic acid tag sequences in each of the modified nucleic acids amplified from other samples of the plurality of samples so that the modified nucleic acids amplified from one sample of the plurality of samples can be differentiated from the modified nucleic acids amplified from other samples of the plurality of samples.

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