Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyFormate dehydrogenase/DMSO reductase domains 1-38042870 3001453 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyADC-like8042869 3001132 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APF01568e1aa6A1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: double psiF: PF01568ECOD (1.6)
APF04879e1aa6A3 A: a+b two layersX: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)T: Formate dehydrogenase/DMSO reductase, domain 1F: PF04879ECOD (1.6)
APF00384e1aa6A2 A: a/b three-layered sandwichesX: Rossmann-likeH: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)T: Formate dehydrogenase/DMSO reductase, domains 2 and 3F: PF00384ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.20.25.90 Mainly Beta Single Sheet N-terminal domain of TfIIb ADC-like domainsCATH (4.3.0)
A3.40.50.740 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold CATH (4.3.0)
A3.40.228.10 Alpha Beta 3-Layer(aba) Sandwich Dimethylsulfoxide Reductase domain 2CATH (4.3.0)
A2.40.40.20 Mainly Beta Beta Barrel Barwin-like endoglucanases CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF01568Molydopterin dinucleotide binding domain (Molydop_binding)Molydopterin dinucleotide binding domainThis 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].
Domain
PF04879Molybdopterin oxidoreductase Fe4S4 domain (Molybdop_Fe4S4)Molybdopterin oxidoreductase Fe4S4 domainThis domain is found in formate dehydrogenase H for which the structure is known. This first domain (residues 1 to 60) of PDB:1aa6 is an Fe4S4 cluster just below the protein surface [1].Domain
PF00384Molybdopterin oxidoreductase (Molybdopterin)Molybdopterin oxidoreductase- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
FORMATE DEHYDROGENASE H

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
formate dehydrogenase  M-CSA #562

Formate Dehydrogenase H (FDH-H) from Escherichi coli is a 79kDa polypeptide component of the anaerobic formate hydrogen lyase complex. The enzyme catalyses the oxidation of formate (produced from pyruvate during anaerobic growth) to carbon dioxide, in the absence of exogenous electron acceptors, with the concomitant release of two electrons and two protons.

Defined by 4 residues: LYS:A-44SEC:A-140HIS:A-141ARG:A-333
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