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Method for making polynucleotides having desired characteristics

  • US 7,853,410 B2
  • Filed: 10/18/2007
  • Issued: 12/14/2010
  • Est. Priority Date: 01/19/1999
  • Status: Expired due to Fees
First Claim
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1. A method of making a recombinant nucleic acid, the method comprising:

  • providing a plurality of parental character strings corresponding to a plurality of nucleic acids, which character strings, when aligned for maximum identity, comprise at least one region of heterology;

    aligning the character strings;

    defining a set of character string subsequences, which set of subsequences comprises subsequences of at least two of the plurality of parental character strings;

    providing a set of oligonucleotides corresponding to the set of character string subsequences;

    annealing members of the set of oligonucleotides with one another in vitro;

    after annealing, elongating one or more members of the set of oligonucleotides with a polymerase, or ligating at least two members of the set of oligonucleotides with a ligase, thereby producing one or more recombinant nucleic acid;

    selecting the recombinant nucleic acid, or a polypeptide encoded by the recombinant nucleic acid for a desired trait or property, thereby providing a selected recombinant nucleic acid; and

    recombining the selected recombinant nucleic acid with one or more of (i) a nucleic acid homologous to a parental character string, and (ii) an oligonucleotide member from the set of oligonucleotides.

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