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FdVI from Rhodobacter capsulatus is structurally related to a group of [2Fe–2S] ferredoxins involved in iron–sulfur cluster biosynthesis. Comparative genomics suggested that FdVI and orthologs found(More)
The Desulfovibrio gigas hydrogenase is a typical (NiFe) hydrogenase containing a Ni center and three FeS centers, one [3Fe-4S] and two [4Fe-4S] clusters. When the enzyme is activated under hydrogen(More)
The beta subunit of the nitrate reductase A from Escherichia coli contains four groups of cysteine residues (I-IV) which are thought to bind the four iron-sulfur centers (1-4) of the enzyme. The(More)
We have used site-directed mutagenesis to alter the ligands to the iron-sulfur centers of Escherichia coli nitrate reductase A. The beta subunit of this enzyme contains four Cys groups which are(More)
The hndABCD operon from Desulfovibrio fructosovorans encodes an uncommon heterotetrameric NADP-reducing iron hydrogenase. The presence of a [2Fe-2S] cluster likely located in the C-terminal region of(More)