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首页> 外文期刊>Journal of bacteriology >The fnr Gene of Bacillus licheniformis and the Cysteine Ligands of the C-Terminal FeS Cluster
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The fnr Gene of Bacillus licheniformis and the Cysteine Ligands of the C-Terminal FeS Cluster

机译:地衣芽孢杆菌的fnr基因和C末端FeS簇的半胱氨酸配体

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In the facultatively anaerobic bacterium Bacillus licheniformis a gene encoding a protein of the fumarate nitrate reductase family of transcriptional regulators (Fnr) was isolated. Unlike Fnr proteins from gram-negative bacteria, but like Fnr fromBacillus subtilis, the protein contained a C-terminal cluster of cysteine residues. Unlike in Fnr from B. subtilis, this cluster (Cys226-X2-Cys229-X4-Cys234) is composed of only three Cys residues, which are supposed to serve together with an internal residue (Cys71) as the ligands for an FeS center. Transfer of the B. licheniformis gene to anfnr mutant of B. subtilis complemented the ability for synthesis of nitrate reductase during anaerobic growth.
机译:在兼性厌氧细菌地衣芽孢杆菌中,分离出了一个编码富马酸盐硝酸还原酶家族转录调节因子(Fnr)蛋白的基因。与来自革兰氏阴性菌的Fnr蛋白不同,但与来自枯草芽孢杆菌的Fnr不同,该蛋白包含一个C端半胱氨酸残基簇。与 B中的Fnr不同。枯草,该簇(Cys226-X 2 -Cys229-X 4 -Cys234)仅由三个Cys残基组成,应该与内部残基(Cys71)作为FeS中心的配体。 B的转移。地衣形基因成为 B的 fnr 突变体。枯草补充了厌氧生长过程中硝酸还原酶合成的能力。

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