The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds. The engineered ketoreductase polypeptides are optimized for catalyzing the conversion of N,N-dimethyl-3-keto-3-(2-thienyl)-1-ketopropanamine to (S)—N,N-dimethyl-3-hydroxy-3-(2-thienyl)-1-propanamine.
本公开提供了经过改良的酮还原酶酶,其性质优于自然存在的野生型酮还原酶酶。同时提供了编码经过改良的酮还原酶酶的多核苷酸,能够表达经过改良的酮还原酶酶的宿主细胞,以及使用经过改良的酮还原酶酶合成各种手性化合物的方法。经过改良的酮还原酶
多肽被优化用于催化将N,N-二甲基-3-酮基-3-(2-
噻吩基)-1-酮
丙胺转化为(S)-N,N-二甲基-3-羟基-3-(2-
噻吩基)-
1-丙胺。