NITRILASES AND METHODS FOR MAKING AND USING THEM
    5.
    发明申请
    NITRILASES AND METHODS FOR MAKING AND USING THEM 有权
    硝酸盐及其制备和使用方法

    公开(公告)号:US20090162906A1

    公开(公告)日:2009-06-25

    申请号:US11868909

    申请日:2007-10-08

    摘要: The invention provides nitrilases and methods for making and using them, and in one aspect, provides methods for producing enantiomerically pure α-substituted carboxylic acids, such as, for example, α-amino acids and α-hydroxy acids. In one aspect, methods of the invention combine an aldehyde or ketone with a cyanide and ammonia or an ammonium salt or an amine, in the presence of a nitrilase or a polypeptide having nitrilase activity, to stereoselectively hydrolyze the amino nitrile or cyanohydrin intermediate under conditions sufficient to produce the carboxylic acid.

    摘要翻译: 本发明提供腈水解酶和制备和使用它们的方法,一方面,提供了制备对映体纯的α-取代羧酸的方法,例如α-氨基酸和α-羟基酸。 在一个方面,本发明的方法在腈水解酶或具有腈水解酶活性的多肽的存在下,将醛或酮与氰化物和氨或铵盐或胺组合,在条件下立体选择性水解氨基腈或氰醇中间体 足以产生羧酸。