Fumarate reductase (cytochrome)

UniProtKB accession:  Q07WU7

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UniProtKB description:  Flavocytochrome that catalyzes the reduction of fumarate to succinate (PubMed:8093012). Is essential for fumarate respiration during anaerobic growth, acting as the terminal reductase (PubMed:9579067). Receives electrons from the membrane-bound tetraheme c-type cytochrome CymA (By similarity). Is essentially unidirectional, catalyzing only fumarate reduction (PubMed:8093012). Cannot reduce nitrite, dimethylsulphoxide, trimethylamine-N-oxide (TMAO) or sulfite (PubMed:8093012). In vitro, can use the artificial electron donor methyl viologen (PubMed:8093012).