首页> 外文期刊>Tetrahedron >DETERMINATION OF THE REGIOCHEMISTRY OF INSECT EPOXIDE HYDROLASE CATALYZED EPOXIDE HYDRATION OF JUVENILE HORMONE BY O-18-LABELING STUDIES
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DETERMINATION OF THE REGIOCHEMISTRY OF INSECT EPOXIDE HYDROLASE CATALYZED EPOXIDE HYDRATION OF JUVENILE HORMONE BY O-18-LABELING STUDIES

机译:O-18标记法测定昆虫环氧合酶催化少年激素环氧加氢的区域化学。

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摘要

The regiochemistry of Trichoplusia ni epoxide hydrolase catalyzed epoxide hydration of insect juvenile hormone (JH) III has been determined by GC/MS studies of O-18-label incorporation. Nucleophilic addition occurs at C10 of the C10,11 epoxide of JH III. The identification of isotopically labeled and unlabeled diol from the enzyme catalyzed hydration reaction in (H2O)-O-18 implies that a covalently bound ester intermediate may be involved in the mechanism of the reaction. [References: 38]
机译:通过O /-18标记掺入的GC / MS研究,已确定了Trichoplusia ni环氧水解酶催化的昆虫幼激素(JH)III的环氧水合的区域化学。亲核加成发生在JH III的C10,11环氧化物的C10处。从(H2O)-O-18中的酶催化水合反应中鉴定出同位素标记的和未标记的二醇意味着,共价键合的酯中间体可能参与该反应的机理。 [参考:38]

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