来自链霉菌属物种和B组链球菌的汞还原酶
Mercuric reductase enzymes from Streptomyces species and group B Streptococcus.
作者信息
Nakahara H, Schottel J L, Yamada T, Miyakawa Y, Asakawa M, Harville J, Silver S
出版信息
J Gen Microbiol. 1985 May;131(5):1053-9. doi: 10.1099/00221287-131-5-1053.
PMID:3894571
Abstract
Mercury volatilization (Hg2+ reductase) activity has been found with Hg2+-resistant isolates of three Streptomyces species and with three Hg2+-resistant strains of group B Streptococcus from clinical sources in Japan. Hg2+ reductase activities in crude cell extracts showed the temperature sensitivity, the requirement for an added thiol compound and the characteristic dependence on NAD(P)H cofactors of similar enzymes isolated from other bacteria.
摘要
在从日本临床来源分离出的三种链霉菌属物种的汞抗性菌株以及三种B组链球菌汞抗性菌株中发现了汞挥发（Hg2+还原酶）活性。粗细胞提取物中的Hg2+还原酶活性表现出温度敏感性、对添加硫醇化合物的需求以及对从其他细菌中分离出的类似酶对NAD(P)H辅因子的典型依赖性。
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