SHUFFLING OF HETEROLOGOUS DNA SEQUENCES
    3.
    发明授权
    SHUFFLING OF HETEROLOGOUS DNA SEQUENCES 无效
    MIXING OF异源DNA序列

    公开(公告)号:EP1015575B1

    公开(公告)日:2010-05-19

    申请号:EP98907912.4

    申请日:1998-03-18

    申请人: Novozymes A/S

    IPC分类号: C12N15/10 C12Q1/68

    CPC分类号: C12N15/1027

    摘要: The present invention relates to a new method of shuffling especially heterologous polynucleotide sequences, screening and/or selection of new recombinant proteins resulting therefrom having a desired biological activity, and especially to production and identification of novel proteases exhibiting desired properties. The method comprises the following steps; i) identification of at least one conserved region between the heterologous sequences of interest; ii) generating fragments of each of the heterologous sequences of interest, wherein said fragments comprise the conserved region(s), in a preferred embodiment due to the use of parts of the regions(s) as primers; and iii) shuffling/recombining said fragments using the conserved region(s) as (a) homologous linking point(s).

    METHOD FOR CONSTRUCTING A LIBRARY USING DNA SHUFFLING
    4.
    发明授权
    METHOD FOR CONSTRUCTING A LIBRARY USING DNA SHUFFLING 失效
    制造方法文库中DNA改组

    公开(公告)号:EP0996718B1

    公开(公告)日:2008-12-24

    申请号:EP98907910.8

    申请日:1998-03-18

    申请人: Novozymes A/S

    IPC分类号: C12N15/10 C12Q1/68 C12N9/00

    摘要: A method for the construction of a library of recombined polynucleotides from a number of different starting single or double stranded parental DNA templates is disclosed, wherein the starting single or double stranded parental DNA templates represent discrete points in a population of genes encoding evolutionary or synthetic homologues of a peptide having homologies ranging over a broad spectrum from less than 15 % to more than 80 %, said population exhibiting at least one identification sequence, and whereby said genes are subjected to a gene shuffling procedure to generate shuffled mutants of said population of genes representing additional discrete points between those of said starting templates.