摘要:
The present invention provides a population of polynucleotides resulting from shuffling sequences from substrate polynucleotides encoding antibody chains, whereby the population of polynucleotides comprises recombinant polynucleotides encoding antibody chains having different combinations of heavy chain CDRs and/or light chain CDRs than are encoded by the substrate polynucleotides. Such a population of polynucleotides may be employed to provide an antibody display library.
摘要:
The invention provides a method of recombining a plurality of parental nucleic acids, comprising:
hybridizing a library of oligonucleotides, synthesized to correspond to a plurality of parental nucleic acids, to at least one template nucleic acid; extending the hybridized library of oligonucleotides with a polymerase; and, ligating the resulting extended oligonucleotides with a ligase, thereby producing a recombinant nucleic acid.
摘要:
The present invention relates to a method for evolving a polynucleotide encoding a plurality of genes, e.g. multiple genes forming a multicomponent pathway. The method involves shuffling of polynucleotides by conducting a polynucleotide amplification process on overlapping segments of a population of variants of a polynucleotide encoding a plurality of genes under conditions whereby one segment serves as a template for extension of another segment to generate a population of recombinant polynucleotides. This population is screened for a recombinant polynucleotide encoding a plurality of genes having a desired property.
摘要:
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 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.
摘要:
The invention provides a method of recombining a plurality of parental nucleic acids, the method comprising:
synthesizing a set of oligonucleotides corresponding to more than two of the plurality of parental nucleic acids; and, ligating the set oligonucleotides, thereby producing at least one recombinant nucleic acid comprising subsequences from more than two of the plurality of parental nucleic acids.
摘要:
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 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.
摘要:
The present invention provides a population of polynucleotides resulting from shuffling sequences from substrate polynucleotides encoding antibody chains, whereby the population of polynucleotides comprises recombinant polynucleotides encoding antibody chains having different combinations of heavy chain CDRs and/or light chain CDRs than are encoded by the substrate polynucleotides. Such a population of polynucleotides may be employed to provide an antibody display library.
摘要:
The present invention provides methods of evolving a polynucleotide sequence for acquisition of a desired property starting from a population of variants of the polynucleotide. In one embodiment, repeated cycles of recombination and selection permit the directed molecular evolution in vitro or in vivo of an encoded protein.
摘要:
The present invention relates to a method for evolving a polynucleotide encoding a plurality of genes, e.g. multiple genes forming a multicomponent pathway. The method involves shuffling of polynucleotides by conducting a polynucleotide amplification process on overlapping segments of a population of variants of a polynucleotide encoding a plurality of genes under conditions whereby one segment serves as a template for extension of another segment to generate a population of recombinant polynucleotides. This population is screened for a recombinant polynucleotide encoding a plurality of genes having a desired property.