The invention provides compositions comprising an alkene epoxidase and a selective epoxide hydrolase, such as a recombinant microorganism comprising a first heterologous nucleic acid encoding an alkene epoxidase and a second heterologous nucleic acid encoding a selective epoxide hydrolase. Exemplary alkene epoxidases include StyAB, while exemplary selective epoxide hydrolases include epoxide hydrolases from
Sphingomonas, Solanum tuberosum
, or
Aspergillus
. The invention also provides non-toxic methods of making enantiomerically pure vicinal diols or enantiomerically pure alpha-hydroxy carboxylic acids using these compositions and microorganisms.
该发明提供了包含烯烃环氧化酶和选择性环氧
水解酶的组合物,例如包括编码烯烃环氧化酶的第一异源核酸和编码选择性环氧
水解酶的第二异源核酸的
重组微
生物。示例烯烃环氧化酶包括StyAB,而示例选择性环氧
水解酶包括来自Sphingomonas、Solanum tuberosum或Aspergillus的环氧
水解酶。该发明还提供了使用这些组合物和微
生物制备对映纯邻二醇或对映纯α-羟基
羧酸的无毒方法。