1EU1

THE CRYSTAL STRUCTURE OF RHODOBACTER SPHAEROIDES DIMETHYLSULFOXIDE REDUCTASE REVEALS TWO DISTINCT MOLYBDENUM COORDINATION ENVIRONMENTS.

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1eu1a1	All beta proteins	Double psi beta-barrel	ADC-like	Formate dehydrogenase/DMSO reductase, C-terminal domain	Dimethylsulfoxide reductase (DMSO reductase)	(Cereibacter sphaeroides ) [TaxId: 1063 ],	SCOPe (2.08)
A	d1eu1a2	Alpha and beta proteins (a/b)	Formate dehydrogenase/DMSO reductase, domains 1-3	Formate dehydrogenase/DMSO reductase, domains 1-3	Formate dehydrogenase/DMSO reductase, domains 1-3	Dimethylsulfoxide reductase (DMSO reductase)	(Cereibacter sphaeroides ) [TaxId: 1063 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Formate dehydrogenase/DMSO reductase domains 1-3	8020621	4000801	SCOP2 (2022-06-29)
A	SCOP2 Family	Formate dehydrogenase/DMSO reductase C-terminal domain	8030126	4002360	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Formate dehydrogenase/DMSO reductase domains 1-3	8033001	3001453	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	ADC-like	8042505	3001132	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Molydop_binding	e1eu1A1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: Molydop_binding	ECOD (1.6)
A	MopB_DMSOR-BSOR-TMAOR	e1eu1A3	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: MopB_DMSOR-BSOR-TMAOR	ECOD (1.6)
A	Molybdopterin_2nd	e1eu1A5	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	e1eu1A4	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	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	3.90.55.10	Alpha Beta	Alpha-Beta Complex	Dimethylsulfoxide Reductase	domain 3	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 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
A	PF18364	Molybdopterin oxidoreductase N-terminal domain (Molybdopterin_N)	Molybdopterin oxidoreductase N-terminal domain	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].	Domain
A	PF00384	Molybdopterin oxidoreductase (Molybdopterin)	Molybdopterin oxidoreductase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DIMETHYL SULFOXIDE REDUCTASE	trimethylamine-N-oxide reductase (cytochrome c) activity oxidoreductase activity, acting on other nitrogenous compounds as donors, cytochrome as acceptor oxidoreductase activity oxidoreductase activity, acting on other nitrogenous compounds as donors catalytic activity trimethylamine-N-oxide reductase activity binding organic cyclic compound binding molybdopterin cofactor binding cation binding ion binding metal ion binding small molecule binding	-	periplasmic space cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR006657	Molybdopterin dinucleotide-binding domain	Domain
A	IPR006656	Molybdopterin oxidoreductase	Domain
A	IPR006311	Twin-arginine translocation pathway, signal sequence	Conserved Site
A	IPR009010	Aspartate decarboxylase-like domain superfamily	Homologous Superfamily
A	IPR041954	Trimethylamine-N-oxide reductase-like, molybdopterin-binding domain	Domain
A	IPR041460	Molybdopterin oxidoreductase, N-terminal	Domain
A	IPR006655	Molybdopterin oxidoreductase, prokaryotic, conserved site	Conserved Site
A	IPR006658	Molybdopterin guanine dinucleotide-containing S/N-oxide reductase	Family
A	IPR019546	Twin-arginine translocation pathway, signal sequence, bacterial/archaeal	Conserved Site

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	CSD	Parent Component: CYS RESID: AA0262 PSI-MOD : L-cysteine sulfinic acid MOD:00267

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

Chains	Enzyme Name	Description	Catalytic Residues
A	dimethylsulfoxide reductase M-CSA #701	The molybdoenzyme dimethylsulfoxide (DMSO) reductase contributes to the release of dimethylsulfide, a compound that has been implicated in cloud nucleation and global climate regulation. Terminal reductase during anaerobic growth on various sulfoxide and N-oxide compounds. This enzyme contains a mononuclear Mo coordinated by two molybdopterin guanine dinucleotides as its single cofactor.	Defined by 2 residues: TYR:A-114TRP:A-116 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 1.8.99 (PDB Primary Data) Search M-CSA Motif + EC 1.8.99

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.