This domain is found in various molybdopterin - containing oxidoreductases and tungsten formylmethanofuran dehydrogenase subunit d (FwdD) and molybdenum formylmethanofuran dehydrogenase subunit (FmdD); where the domain constitutes almost the entir ...
This domain is found in various molybdopterin - containing oxidoreductases and tungsten formylmethanofuran dehydrogenase subunit d (FwdD) and molybdenum formylmethanofuran dehydrogenase subunit (FmdD); where the domain constitutes almost the entire subunit. The formylmethanofuran dehydrogenase catalyses the first step in methane formation from CO2 in methanogenic archaea and has a molybdopterin dinucleotide cofactor [1]. This domain corresponds to the C-terminal domain IV in dimethyl sulfoxide (DMSO)reductase which interacts with the 2-amino pyrimidone ring of both molybdopterin guanine dinucleotide molecules [2].
This is the N-terminal domain of Pfam:PF00384 found in a number of molybdopterin-containing oxidoreductases such as dimethyl sulfoxide/trimethylamine N-oxide reductase, also known as DMSO reductase (EC:1.7.2.3, EC:1.8.5.3) [1].
trimethylamine-N-oxide reductase (cytochrome c)
M-CSA #894
Trimethylamine N-oxide (TMAO) has been found in a variety of marine organisms including fish, molluscs, crustaceans and seaweed [PMID:16221580]. TMAO is found in marine organisms as an osmolyte in combination with urea. In sharks, who lack a swim bladder, TMAO and urea contribute to buoyancy. A number of marine-fish spoilage organisms use TMAO as an electron acceptor in anaerobic respiration [PMID:3904597]. Trimethylamine (TMA), the volatile product of this reaction, has the specific odour of rotting fish. In Escherichia coli, the TMAO respiratory chain consists of a quinol electron donor, a membrane-bound multiheme c-type cytochrome TorC, and a periplasmic terminal reductase TorA that contains bis(molybdopterin guanine dinucleotide)molybdenum cofactor (this entry). This molybdoenzyme belongs to the dimethyl sulfoxide (DMSO) reductase family.
Defined by 2 residues: TRP:A-149 [auth A-118]SER:A-180 [auth A-149]