Nitric oxide reductase subunit B

UniProtKB accession:  Q59647

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UniProtKB description:  Component of the anaerobic respiratory chain that transforms nitrate to dinitrogen (denitrification). NorB is the catalytic subunit of the enzyme complex. Shows proton pump activity across the membrane in denitrifying bacterial cells. The mononitrogen reduction is probably coupled to electron transport phosphorylation (By similarity).