This invention provides improved monoxygenases, dehydrogenases, and transferases that are useful for the biocatalytic synthesis of compounds such as &agr;-hydroxycarboxylic acids, and aryl- and alkyl-hydroxy compounds. The polypeptides provided herein are improved in properties such as regioselectivity, enzymatic activity, stereospecificity, and the like. Methods for obtaining recombinant polynucleotides that encode these improved polypeptides are also provided, as are organisms that express the polypeptides and are thus useful for carrying out said biocatalytic syntheses. Also provided by the invention are methods for increasing said solvent resistance of organisms that are used in the synthetic methods.
本发明提供了改进的单加氧酶、脱氢酶和转移酶,可用于
生物催化合成α-羟基
羧酸和芳基-和烷基-羟基化合物等化合物。本文所提供的
多肽在区域选择性、酶活性、立体特异性等性质方面得到了改进。本发明还提供了获得编码这些改进
多肽的
重组多核苷酸的方法,以及表达这些
多肽并因此用于进行上述
生物催化合成的有用的
生物体。本发明还提供了用于增加用于合成方法的
生物体的溶剂耐受性的方法。