ID 1.8.5.3 DE respiratory dimethylsulfoxide reductase. AN dimethylsulfoxide reductase. AN DMSO reductase. CA a menaquinone + dimethyl sulfide + H2O = a menaquinol + CA dimethyl sulfoxide. CC -!- The enzyme participates in bacterial electron transfer pathways in CC which dimethylsulfoxide (DMSO) is the terminal electron acceptor. CC -!- It is composed of three subunits - DmsA contains a bis(guanylyl CC molybdopterin) cofactor and a [4Fe-4S] cluster, DmsB is an iron- CC sulfur protein, and DmsC is a transmembrane protein that anchors the CC enzyme and accepts electrons from the quinol pool. CC -!- The electrons are passed through DmsB to DmsA and on to DMSO. CC -!- The enzyme can also reduce pyridine-N-oxide and trimethylamine CC N-oxide to the corresponding amines with lower activity. DR P18775, DMSA_ECOLI ; P45004, DMSA_HAEIN ; Q9HR74, DMSA_HALSA ; DR Q57366, DSTOR_CERSP; Q52675, DSTOR_RHOCA; //