申请人:CODEXIS, INC.
公开号:US20130210098A1
公开(公告)日:2013-08-15
The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme including the capability of reducing 5-((4S)-2-oxo-4-phenyl(1,3-oxazolidin-3-yl))-1-(4-fluorophenyl)pentane-1,5-dione to (4S)-3-[(5S)-5-(4-fluorophenyl)-5-hydroxypentanoyl]-4-phenyl-1,3-oxazolidin-2-one. 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 the intermediate (4S)-3-[(5S)-5-(4-fluorophenyl)-5-hydroxypentanoyl]-4-phenyl-1,3-oxazolidin-2-one in a process for making Ezetimibe.
本公开提供了经过改造的酮还原酶酶,其性能优于自然存在的野生型酮还原酶酶,包括将5-((4S)-2-氧代-4-苯基(1,3-噁唑烷-3-基))-1-(4-氟苯基)戊-1,5-二酮还原为(4S)-3-[(5S)-5-(4-氟苯基)-5-羟基戊酰基]-4-苯基-1,3-噁唑烷-2-酮的能力。还提供了编码经过改造的酮还原酶酶的多核苷酸、能够表达经过改造的酮还原酶酶的宿主细胞,以及使用经过改造的酮还原酶酶合成中间体(4S)-3-[(5S)-5-(4-氟苯基)-5-羟基戊酰基]-4-苯基-1,3-噁唑烷-2-酮的方法,用于制备依折麦布。