Method for creating polynucleotide and polypeptide sequences
First Claim
1. A method for evolving a polynucleotide toward acquisition of a desired property, comprising(a) incubating a population of parental polynucleotide variants comprising allelic or species variants of a gene, or mutants created by error-prone PCR, under conditions to generate annealed polynucleotides comprising heteroduplexes;
- (b) exposing the heteroduplexes to enzymes of a DNA repair system to convert the heteroduplexes to parental polynucleotide variants or recombined polynucleotide variants;
(c) screening or selecting the recombined polynucleotide variants for the desired property.
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Abstract
The invention provides methods for evolving a polynucleotide toward acquisition of a desired property. Such methods entail incubating a population of parental polynucleotide variants under conditions to generate annealed polynucleotides comprising heteroduplexes. The heteroduplexes are then exposed to a cellular DNA repair system to convert the heteroduplexes to parental polynucleotide variants or recombined polynucleotide variants. The resulting polynucleotides are then screened or selected for the desired property.
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Citations
34 Claims
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1. A method for evolving a polynucleotide toward acquisition of a desired property, comprising
(a) incubating a population of parental polynucleotide variants comprising allelic or species variants of a gene, or mutants created by error-prone PCR, under conditions to generate annealed polynucleotides comprising heteroduplexes; -
(b) exposing the heteroduplexes to enzymes of a DNA repair system to convert the heteroduplexes to parental polynucleotide variants or recombined polynucleotide variants; (c) screening or selecting the recombined polynucleotide variants for the desired property. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for evolving a polynucleotide toward acquisition of a desired property, comprising
(a) incubating a population of parental polynucleotide variants, under conditions to generate annealed polynucleotides comprising heteroduplexes; -
(b) exposing the heteroduplexes to enzymes of a DNA repair system to convert the heteroduplexes to parental polynucleotide variants or recombined polynucleotide variants; (c) screening or selecting the recombined polynucleotide variants for the desired property; and (d) recombining screened or selected recombined polynucleotides with each other or other substrates, followed by screening or selection.
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Specification