Annotations: 2E7Z

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Molydop_binding	e2e7zA3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: Molydop_binding	ECOD (1.6)
A	Molybdop_Fe4S4	e2e7zA4	A: a+b two layers	X: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)	H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domain 1	F: Molybdop_Fe4S4	ECOD (1.6)
A	Molybdopterin_2nd	e2e7zA5	A: a/b three-layered sandwiches	X: Rossmann-like	H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domains 2 and 3	F: Molybdopterin_2nd	ECOD (1.6)
A	Molybdopterin_1st_1	e2e7zA2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology)	T: Formate dehydrogenase/DMSO reductase, domains 2 and 3	F: Molybdopterin_1st_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.20.25.90	Mainly Beta	Single Sheet	N-terminal domain of TfIIb	ADC-like domains	CATH (4.3.0)
A	3.40.50.740	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
A	3.40.228.10	Alpha Beta	3-Layer(aba) Sandwich	Dimethylsulfoxide Reductase	domain 2	CATH (4.3.0)
A	2.40.40.20	Mainly Beta	Beta Barrel	Barwin-like endoglucanases		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01568	Molydopterin dinucleotide binding domain (Molydop_binding)	Molydopterin dinucleotide binding domain	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 s ...	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
A	PF00384	Molybdopterin oxidoreductase (Molybdopterin)	Molybdopterin oxidoreductase		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Acetylene hydratase Ahy	oxidoreductase activity catalytic activity acetylene hydratase activity hydro-lyase activity lyase activity carbon-oxygen lyase activity binding molybdopterin cofactor binding iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding ion binding oxidoreductase activity catalytic activity acetylene hydratase activity hydro-lyase activity lyase activity carbon-oxygen lyase activity binding molybdopterin cofactor binding iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding ion binding metal ion binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR050612	Prokaryotic Molybdopterin Oxidoreductases	Family
A	IPR041930	Acetylene hydratase	Domain
A	IPR006657	Molybdopterin dinucleotide-binding domain	Domain
A	IPR006656	Molybdopterin oxidoreductase	Domain
A	IPR009010	Aspartate decarboxylase-like domain superfamily	Homologous Superfamily
A	IPR037949	Acetylene hydratase, MopB domain	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.