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Purification and Properties of Soluble Hydrogenase from Photosynthetic Bacterium Chromatium vinosum
Authors
University of Amsterdam,1018TV,Amsterdam,the Netherlands) S.P.J.ALBRACHT( E C Slater Institute
张凤章
+3 more
苏文金
许良树
龙敏南
Publication date
1 December 2000
Publisher
《中国生物化学与分子生物学报》编辑部
Abstract
联系人: 龙敏南, 男, 1965 年1 月生, 博士, 副教授 T el : 0592-2186392 E-mail : longmn@ jin gxian. xmu. edu. cn光合细菌 Chromatium vinosum可溶性氢酶经 4次柱层析 (Whatman DE- 52 ,TSK- DEAE,Ultragel Ac A- 44 ,Mono Q)分离提纯后被纯化 630倍 ,得率为 33.5% .可溶性氢酶催化放氢比活性为 7.5μmol· min-1· mg-1.SDS- PAGE结果显示 ,可溶性氢酶由 52 k D和 2 1 .5k D两个亚基组成 .大亚基 N端氨基酸序列为 :SRTITIEPVTRXEGHAR;小亚基 N端氨基酸序列为 :STQPKIT-VATXLDG.氧化态可溶性氢酶在 54K时产生了典型的 Ni( )电子顺磁共振 (EPR)信号 (gxyz=2 .37、2 .1 6、2 .0 1 6和 gxyz=2 .30、2 .2 3、2 .0 1 6) .研究结果表明 ,C.vinosum可溶性氢酶是一种新的催化放氢的 Ni Fe-氢酶 .教育部重点科技项目!资助 (No.990 70
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Last time updated on 16/06/2016