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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)
Respiratory nitrate reductase beta C-terminal
This domain occurs near the C-terminus of the respiratory nitrate reductase beta chain. The nitrate reductase complex is a dimer of heterotrimers each consisting of an alpha, beta and gamma chain. This domain plays a role in the interactions between subunits and shielding of the Fe-S clusters [1] [1]. 12910261. Insights into the respiratory electron transfer pathway from the structure of nitrate reductase A. Bertero MG, Rothery RA, Palak M, Hou C, Lim D, Blasco F, Weiner JH, Strynadka NC;. Nat Struct Biol. 2003;10:681-687. (from Pfam)
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)
nitrate reductase subunit beta
The Nitrate reductase enzyme complex allows bacteria to use nitrate as an electron acceptor during anaerobic growth. The enzyme complex consists of a tetramer that has an alpha, beta and 2 gamma subunits. The alpha and beta subunits have catalytic activity and the gamma subunits attach the enzyme to the membrane and is a b-type cytochrome that receives electrons from the quinone pool and transfers them to the beta subunit. This model is specific for the beta subunit for nitrate reductase I (narH) and nitrate reductase II (narY) for gram positive and gram negative bacteria.A few thermophiles and archaea also match the model.The seed members used in this model are all experimentally characterized and include the following:SP:P11349, and SP:P19318, both E.Coli (NarH and NarY respectively), SP:P42176 from B. Subtilis, GP:11344602 from Psuedomonas fluorescens,GP:541762 from Paracoccus denitrificans, and GP:18413622 from Halomonas halodenitrificans. This HMM also matches PFAM PF00037 for 4Fe-4S binding domain.
nitrate reductase subunit beta is a component of nitrate reductase enzyme complex that allows bacteria to use nitrate as an electron acceptor during anaerobic growth
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