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    • 62. 发明授权
    • Ketoreductase polypeptides
    • 酮还原酶多肽
    • US09139820B2
    • 2015-09-22
    • US14606127
    • 2015-01-27
    • Codexis, Inc.
    • Emily MundorffErik Jan De Vries
    • C12N9/00C12P7/02C12N9/04C12P17/14C12P17/10
    • C12N9/0006C12N15/00C12N15/75C12P7/02C12P17/10C12P17/14C12P41/002C12Y101/01184Y02P20/52
    • 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.
    • 本发明提供与天然存在的野生型酮还原酶相比具有改进性质的工程化酮还原酶,其包括还原5 - ((4S)-2-氧代-4-苯基(1,3-恶唑烷-3-基) )) - 1-(4-氟苯基)戊烷-1,5-二酮转化为(4S)-3 - [(5S)-5-(4-氟苯基)-5-羟基戊酰基] -4-苯基-1,3- 恶唑烷-2-酮。 还提供了编码工程化酮还原酶的多核苷酸,能够表达工程化酮还原酶的宿主细胞和使用工程化酮还原酶合成中间体(4S)-3 - [(5S)-5-(4-氟苯基) -5-羟基戊酰基] -4-苯基-1,3-恶唑烷-2-酮在制备依泽替米贝的方法中。