RECONSTITUTION OF THE ISOBUTENE-FORMING REACTION CATALYZED BY CYTOCHROME-P450 AND P450-REDUCTASE FROM RHODOTORULA-MINUTA - DECARBOXYLATION WITH THE FORMATION OF ISOBUTENE

被引：37

作者：

FUKUDA, H ^{[1
]}

FUJII, T ^{[1
]}

SUKITA, E ^{[1
]}

TAZAKI, M ^{[1
]}

NAGAHAMA, S ^{[1
]}

OGAWA, T ^{[1
]}

机构：

[1] KUMAMOTO INST TECHNOL,DEPT IND CHEM,IKEDA 860,KUMAMOTO,JAPAN

来源：

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | 1994年 / 201卷 / 02期

关键词：

D O I：

10.1006/bbrc.1994.1732

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

An isobutene-forming activity was reconstituted with cytochrome P450rm and cytochrome P450 reductase purified from Rhodotorula minuta. The nonionic detergent, Emulgen 911, present in the preparation of purified P450rm, inhibited the reconstitution. Bovine serum albumin enhanced the activity of the reconstituted system. Branching of the beta carbon of the substrate carboxylic acid was important for formation of isobutene. In a comparative study with isovalerate and 3-deuterio-3-methylbutanoate, a very large isotopic effect (k(H)/k(D)=14) was observed. This result indicates that formation of isobutene might be initiated by abstraction of hydrogen from the 13 carbon of isovalerate and might be followed by decarboxylation. (C) 1994 Academic Press, Inc.

引用

页码：516 / 522

页数：7

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