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    • 30. 发明公开
    • METHODS FOR PRODUCING POLYPEPTIDES IN ENZYME-DEFICIENT MUTANTS OF FUSARIUM VENENATUM
    • VERFAHREN ZUR HERSTELLUNG VON POLYPEPTIDEN IN ENZYMMANGELMUTANTEN VON FUSARIUM VENENATUM
    • EP2352831A1
    • 2011-08-10
    • EP09793185.1
    • 2009-09-30
    • Novozymes Inc.
    • SHASKY, JeffreyYODER, Wendy
    • C12N15/80
    • C12P21/00C12N9/242C12N9/58C12N9/88C12N15/80C12P21/02C12Y302/01001C12Y401/01023Y02P20/52
    • The present invention relates to methods of producing a polypeptide, comprising: (a) cultivating a mutant of a parent
      Fusarium venenatum strain in a medium for the production of the polypeptide, wherein the mutant strain comprises a polynucleotide encoding the polypeptide and one or more (several) genes selected from the group consisting of
      pyrG ,
      amyA , and
      alpA , wherein the one or more (several) genes are modified rendering the mutant strain deficient in the production of one or more (several) enzymes selected from the group consisting of orotidine-5'-monophosphate decarboxylase, alpha-amylase, and alkaline protease, respectively, compared to the parent
      Fusarium venenatum strain when cultivated under identical conditions; and (b) recovering the polypeptide from the cultivation medium. The present invention also relates to enzyme-deficient mutants of
      Fusarium venenatum strains and methods for producing such mutants.
    • 本发明涉及产生多肽的方法,其包括:(a)在用于产生多肽的培养基中培养母本镰孢镰刀菌菌株的突变体,其中所述突变株包含编码多肽的多核苷酸和一个或多个( 几种)选自pyrG,amyA和alpA的基因,其中所述一个或多个(若干)基因被修饰,使所述突变菌株缺乏产生选自下组的一种或多种(几种) -5'-单磷酸脱羧酶,α-淀粉酶和碱性蛋白酶,与相同条件下培养的亲本镰刀菌镰孢菌株相比; 和(b)从培养基中回收多肽。 本发明还涉及镰状镰孢菌株的酶缺陷型突变体及其生产方法。