?cl38998: MCR_alpha_N Superfamily (this model, PSSM-Id:422996 is obsolete)
Methyl-coenzyme M reductase alpha subunit, N-terminal domain Methyl-coenzyme M reductase (MCR) is the enzyme responsible for microbial formation of methane. It is a hexamer composed of 2 alpha (this family), 2 beta (pfam02241), and 2 gamma (pfam02240) subunits with two identical nickel porphinoid active sites. The N-terminal domain has a ferredoxin-like fold.
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Jiyao W et al.(2023). "The conserved domain database in 2023.",