sulfate reduction electron transfer complex DsrMKJOP subunit DsrM
Proteins of this family are the DsrM subunit of the DsrMKJOP complex, which is a membrane-bound redox complex involved in sulfate reduction in Sulfate-reducing organisms (SROs). The dsrM gene encodes a cytochrome b reductase, which usually has six transmembrane helices and five conserved histidines.
Jiyao W et al.(2023). "The conserved domain database in 2023.",