Methods for generating polynucleotides having desired characteristics by iterative selection and recombination
First Claim
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1. A method of generating a combinatorial library of recombinant nucleic acids, the method comprising:
- (a) providing a plurality of non-identical deoxyribonucleic acids comprising intron and exon sequences, which intron and exon sequences comprise a plurality of different splicing frames; and
, (b) recombining the plurality of non-identical deoxyribonucleic acids to produce predominantly in frame combinations of the exon sequences, thereby providing the combinatorial library.
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Abstract
A method for DNA reassembly after random fragmentation, and its application to mutagenesis of nucleic acid sequences by in vitro or in vivo recombination is described. In particular, a method for the production of nucleic acid fragments or polynucleotides encoding mutant proteins is described. The present invention also relates to a method of repeated cycles of mutagenesis, shuffling and selection which allow for the directed molecular evolution in vitro or in vivo of proteins.
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Citations
71 Claims
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1. A method of generating a combinatorial library of recombinant nucleic acids, the method comprising:
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(a) providing a plurality of non-identical deoxyribonucleic acids comprising intron and exon sequences, which intron and exon sequences comprise a plurality of different splicing frames; and
,(b) recombining the plurality of non-identical deoxyribonucleic acids to produce predominantly in frame combinations of the exon sequences, thereby providing the combinatorial library. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17)
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11. The method of 10, comprising recombining intron sequences.
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12. The method of 10, wherein the recombining comprises homologous recombination or site specific recombination between the distinct members.
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13. A method of generating a combinatorial library of recombinant nucleic acids, the method comprising:
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(a) providing a plurality of nucleic acids comprising intron and exon sequences, which intron and exon sequences comprise a plurality of splicing frames; and
,(b) recombining the plurality of nucleic acids to produce predominantly in frame combinations of the exon sequences, thereby providing the combinatorial library, wherein the predominantly in frame combinations of exon sequences are produced by concatamerizing a plurality of exons during a polymerase chain reaction (PCR) using at least one primer that spans intron segments.
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18. A method of generating a combinatorial library of recombinant nucleic acids, the method comprising:
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(a) providing a plurality of non-identical deoxyribonucleic acids comprising intron and exon sequences, which intron and exon sequences comprise a plurality of different splicing frames and the intron and exon sequences are selected to predominantly comprise a single splicing frame; and
,(b) recombining the plurality of non-identical deoxyribonucleic acids to produce a plurality of in frame combinations of the exon sequences, thereby providing the combinatorial library. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of generating a combinatorial library of recombinant nucleic acids, the method comprising:
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(a) providing a plurality of non-identical deoxyribonucleic acids comprising exon sequences, wherein the exon sequences comprise a plurality of different splicing frames; and
(b) recombining the plurality of non-identical deoxyribonucleic acids to produce predominantly in frame combinations of the exon sequences, thereby providing the combinatorial library. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50)
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46. A method of generating a combinatorial library of recombinant nucleic acids, the method comprising:
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(a) providing a plurality of nucleic acids comprising exon sequences, wherein the exon sequences comprise one or more splicing frames; and
(b) recombining the plurality of nucleic acids to produce predominantly in frame combinations of the exon sequences, thereby providing the combinatorial library, wherein the predominantly in frame combinations of exon sequences are produced by concatamerizing a plurality of exons during a polymerase chain reaction (PCR).
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51. A method of generating a combinatorial library of recombinant nucleic acids, the method comprising:
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(a) providing a plurality of non-identical deoxyribonucleic acids comprising splicing modules, wherein the splicing modules comprise a plurality of different splicing frames; and
(b) recombining the plurality of non-identical deoxyribonucleic acids to produce predominantly in frame combinations of the splicing modules, thereby providing the combinatorial library. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 68, 69, 70, 71)
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67. A method of generating a combinatorial library of recombinant nucleic acids, the method comprising:
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(a) providing a plurality of nucleic acids comprising splicing modules, wherein the splicing modules comprise one or more splicing frame; and
(b) recombining the plurality of nucleic acid to produce predominantly in frame combinations of the splicing module sequences, thereby providing the combinatorial library, wherein the predominantly in frame combinations of exon sequences are produced by concatamerizing a plurality of exons during a polymerase chain reaction (PCR).
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Specification