A variant of Yarrowia lipolytica lipase with improved activity and enantioselectivity for resolution of 2-bromo-arylacetic acid esters

被引：26

作者：

Cancino, Miguel ^{[1
,2
,3
]}

Bauchart, Philippe ^{[1
,2
,3
]}

Sandoval, Georgina ^{[1
,2
,3
]}

Nicaud, Jean-Marc ^{[4
]}

Andre, Isabelle ^{[1
,2
,3
]}

Dossat, Valerie ^{[1
,2
,3
]}

Marty, Alain ^{[1
,2
,3
]}

机构：

[1] Univ Toulouse, INSA, UPS, INP,LISBP, F-31077 Toulouse, France

[2] INRA, UMR Ingn Syst Biol & Procedes 792, F-31400 Toulouse, France

[3] CNRS, UMR5504, F-31400 Toulouse, France

[4] INRA, Lab Microbiol & Genet Mol AgroParisTech, UMR2585, UMR1238, F-78850 Thiverval Grignon, France

来源：

TETRAHEDRON-ASYMMETRY | 2008年 / 19卷 / 13期

关键词：

D O I：

10.1016/j.tetasy.2008.06.009

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A variant of Lip2p lipase from Yarrowia lipolytica yeast was used for the resolution of 2-bromophenyl and o-tolyl acid esters, an important class of chemical intermediates for the pharmaceutical industry. In comparison with wild-type Lip2p, this variant, which contains one single amino acid change in the active site of the enzyme, V232A, displayed an enantioselectivity enhanced by one order of magnitude for the resolution of 2-bromo-phenylacetic acid ethyl ester (E-value increased from 5.5 to 59 for wild-type and V232A, respectively) and by fourfold for the resolution of 2-bromo-o-tolylacetic acid ethyl ester (going from an E-value of 27 to 111 for the wild-type and V232A, respectively). A remarkable increase in reaction velocity was also observed for both compounds, as a result of a significant gain in reactivity towards the favoured (S)-enantiomer (3- and 16-fold increase for 2-bromo-phenylacetic and -o-tolylacetic acid ethyl esters, respectively). These results demonstrate the key role of the V232 amino acid in enantiomer recognition and selectivity. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1608 / 1612

页数：5

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