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4Fe-4S dicluster-binding protein
Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. Domain contains two 4Fe4S clusters. (from Pfam)
4Fe-4S dicluster domain-containing protein
This family includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. The structure of the domain is an alpha-antiparallel beta sandwich. (from Pfam)
4Fe-4S binding domain
This superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. (from Pfam)
Nitrite/Sulfite reductase ferredoxin-like half domain
Sulfite and Nitrite reductases are key to both biosynthetic assimilation of sulfur and nitrogen and dissimilation of oxidised anions for energy transduction [1]. Two copies of this repeat are found in Nitrite and Sulfite reductases and form a single structural domain. [1]. 7569952. Sulfite reductase structure at 1.6 A: evolution and catalysis for reduction of inorganic anions. Crane BR, Siegel LM, Getzoff ED;. Science 1995;270:59-67. (from Pfam)
Nitrite and sulphite reductase 4Fe-4S domain
Sulphite and nitrite reductases are vital in the biosynthetic assimilation of sulphur and nitrogen, respectfully. They are also both important for the dissimilation of oxidised anions for energy transduction. [1]. 7569952. Sulfite reductase structure at 1.6 A: evolution and catalysis for reduction of inorganic anions. Crane BR, Siegel LM, Getzoff ED;. Science 1995;270:59-67. [2]. 9315849. Probing the catalytic mechanism of sulfite reductase by X-ray crystallography: structures of the Escherichia coli hemoprotein in complex with substrates, inhibitors, intermediates, and products. Crane BR, Siegel LM, Getzoff ED;. Biochemistry 1997;36:12120-12137. (from Pfam)
4Fe-4S binding protein
Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. (from Pfam)
sulfite reductase subunit C
Members of this protein family include the C subunit, one of three subunits, of the anaerobic sulfite reductase of Salmonella, and close homologs from various Clostridum species, where the three-gene neighborhood is preserved. Two such gene clusters are found in Clostridium perfringens, but it may be that these sets of genes correspond to the distinct assimilatory and dissimilatory forms as seen in Clostridium pasteurianum. Note that any one of these enzymes may have secondary substates such as NH2OH, SeO3(2-), and SO3(2-). Heterologous expression of the anaerobic sulfite reductase of Salmonella confers on Escherichia coli the ability to produce hydrogen sulfide gas from sulfite.
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