Production of bicyclic and tricyclic triterpenes by mutated squalene-hopene cyclase

被引:37
作者
Pale-Grosdemange, C
Merkofer, T
Rohmer, M
Poralla, K
机构
[1] Univ Tubingen, D-72076 Tubingen, Germany
[2] Univ Strasbourg, Inst Le Bel, CNRS, F-67070 Strasbourg, France
关键词
hopene; malabaricatriene; polypodatetraene; squalene cyclization; triterpene synthase;
D O I
10.1016/S0040-4039(99)01248-4
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Mutagenesis of Tyr420 to Ala in the catalytic cavity of squalene-hopene cyclase of Alicyclobacillus acidocaldarius resulted in an altered product spectrum. Besides hopene and diplopterol, this mutant produced significant amounts of the bicyclic alpha- and gamma-polypodatetraenes and minor amounts of the tricyclic 13 alpha(H)-malabaricatriene. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:6009 / 6012
页数:4
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