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分枝杆菌Mycobacterium sp.M1甾酮C1,2位脱氢酶活性的研究
引用本文:黄巍,别松涛,王超,路福平.分枝杆菌Mycobacterium sp.M1甾酮C1,2位脱氢酶活性的研究[J].天津科技大学学报,2005,20(4):14-17.
作者姓名:黄巍  别松涛  王超  路福平
作者单位:天津科技大学生物工程学院,天津,300222
基金项目:天津市自然科学基金资助项目(043606911)
摘    要:分枝杆菌Mycobacterium sp.M1可以有效降解大豆甾醇侧链得到雄甾-4-烯-3,17-二酮(AD)和雄甾-1,4-二烯-3,17-二酮(ADD)。通过该菌株细胞和细胞裂解液对底物AD的转化,表明了该菌株中存在甾酮C1.2位脱氢酶。利用酶活测定中活力高的细胞裂解液可以有效地降解大豆甾醇生成ADD。

关 键 词:分枝杆菌  大豆甾醇  甾酮C1  2位脱氢酶  雄甾4-烯-3  17-二N  雄甾-1  4-二烯-3  17-二酮
文章编号:1672-6510(2005)04-0014-04
修稿时间:2005年1月4日

Study on 3-ketosteroid-l-dehydrogenase Activity of Mycobacterium sp. M1
HUANG Wei,BIE Song-tao,WANG Chao,LU Fu-ping.Study on 3-ketosteroid-l-dehydrogenase Activity of Mycobacterium sp. M1[J].Journal of Tianjin University of Science & Technology,2005,20(4):14-17.
Authors:HUANG Wei  BIE Song-tao  WANG Chao  LU Fu-ping
Abstract:The selective side-chain cleavage of stigmosterol to androsta-1-diene-3 ,17-dione( AD)and androsta-1-diene-3 ,17-dione( ADD) by Mycobacterium sp. M1 was described. Distinct 3-ketosteroid-l-dehydrogenase activities in]Mycobacterium sp. Ml were found during the transformation of AD to ADD by the cells and cell extracts. According to the assay of 3-ketosteroid-1-dehydrogenase activity, the cell extracts of Mycobacterium sp. Ml containing high 3-ketosteroid-1-dehydrogenase activity were prepared which had the ability to convert stigmosterol to ADD effectively.
Keywords:Mycobacterium  stigmosterol  3-ketosteroid-1-dehydrogenase  androsta-1 -ene-3  17-di-one  androsta-1  4-diene-3  17-dione
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