Cloned (Comment) | Organism |
---|---|
structure with the alpha and beta subunits bound to the DsrC protein. The alpha2beta2gamma2 assembly contains two siroheme-[4Fe4S] cofactors bound by DsrB, two sirohydrochlorins and two [4Fe-4S]-centers bound by DsrA, and another four [4Fe-4S]-centers in the ferredoxin domains. A sulfite molecule, coordinating the siroheme, is found at the active site. The DsrC protein is bound in a cleft between DsrA and DsrB with its conserved C-terminal cysteine reaching the distal side of the siroheme. The process of sulfite reduction may involve DsrAB, DsrC, and the DsrMKJOP membrane complex (a membrane complex with putative disulfide/thiol reductase activity), in which two of the six electrons for reduction of sulfite derive from the membrane quinone pool | Desulfovibrio vulgaris |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Desulfovibrio vulgaris | P45574 and P45575 | P45574 i.e. subunit alpha, P45575 i.e. subunit beta | - |
Desulfovibrio vulgaris Hildenborough | P45574 and P45575 | P45574 i.e. subunit alpha, P45575 i.e. subunit beta | - |
Synonyms | Comment | Organism |
---|---|---|
DsvA | - |
Desulfovibrio vulgaris |
DsvB | - |
Desulfovibrio vulgaris |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
siroheme | protein complex contains two siroheme-[4Fe4S] cofactors bound by subunit DsrB, two sirohydrochlorins and two [4Fe-4S]-centers bound by subunit DsrA, and another four [4Fe-4S]-centers in the ferredoxin domains | Desulfovibrio vulgaris | |
[4Fe-4S]-center | protein complex contains two siroheme-[4Fe4S] cofactors bound by subunit DsrB, two sirohydrochlorins and two [4Fe-4S]-centers bound by subunit DsrA, and another four [4Fe-4S]-centers in the ferredoxin domains | Desulfovibrio vulgaris |