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| asrC | Anaerobic sulfite reductase subunit C; This enzyme catalyzes the hydrogen sulfide production from sulfite. It is strictly anaerobic. It is regulated by electron acceptors rather than by cysteine (By similarity). (337 aa) | ||||
| nirB | Similar to Escherichia coli nitrite reductase [NAD nirB SW:NIRB_ECOLI (P08201) (847 aa) fasta scores: E(): 0, 95.0% id in 847 aa; Belongs to the nitrite and sulfite reductase 4Fe-4S domain family. (847 aa) | ||||
| STY3075 | Sulfite reductase (NADPH) hemoprotein alpha subunit; Component of the sulfite reductase complex that catalyzes the 6-electron reduction of sulfite to sulfide. This is one of several activities required for the biosynthesis of L-cysteine from sulfate. Belongs to the nitrite and sulfite reductase 4Fe-4S domain family. (570 aa) | ||||