Useful mutations of bacterial alkaline protease
    2.
    发明授权
    Useful mutations of bacterial alkaline protease 失效
    细菌碱性蛋白酶有用的突变

    公开(公告)号:US06506589B1

    公开(公告)日:2003-01-14

    申请号:US08486846

    申请日:1995-06-07

    IPC分类号: C12N956

    CPC分类号: C11D3/386 C12N9/54

    摘要: The present invention relates to mutations of the subtilisin gene, some of which result in changes in the chemical characteristics of subtilisin enzyme. Mutations are created at specific nucleic acids of the subtilisin gene and, in various specific embodiments, the mutant enzymes possess altered chemical properties including, but not limited to, increased stability to oxidation, augmented proteolytic activity, and improved washability. The present invention also relates, but is not limited to, the amino acid and DNA sequences for two proteases derived from Bacillus lentus variants, subtilisin 147 and subtilisin 309, as well as mutations of these genes and the corresponding mutant enzymes.

    摘要翻译: 本发明涉及枯草杆菌蛋白酶基因的突变,其中一些导致枯草杆菌蛋白酶的化学特性的变化。 在枯草杆菌蛋白酶基因的特定核酸上产生突变,并且在各种具体实施方案中,突变酶具有改变的化学性质,包括但不限于氧化增强的稳定性,增强的蛋白水解活性和改善的可洗性。 本发明还涉及但不限于来自迟缓芽孢杆菌变体,枯草杆菌蛋白酶147和枯草杆菌蛋白酶309的两种蛋白酶的氨基酸和DNA序列,以及这些基因和相应的突变酶的突变。