Annotations: 4PW3

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF03404	e4pw3A2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF03404	ECOD (1.6)
A	PF00174	e4pw3A1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Sulfite oxidase, middle catalytic domain	F: PF00174	ECOD (1.6)
B	PF03404	e4pw3B2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF03404	ECOD (1.6)
B	PF00174	e4pw3B1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Sulfite oxidase, middle catalytic domain	F: PF00174	ECOD (1.6)
C	PF03404	e4pw3C2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF03404	ECOD (1.6)
C	PF00174	e4pw3C1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Sulfite oxidase, middle catalytic domain	F: PF00174	ECOD (1.6)
D	PF03404	e4pw3D2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF03404	ECOD (1.6)
D	PF00174	e4pw3D1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Sulfite oxidase, middle catalytic domain	F: PF00174	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.420.10	Alpha Beta	Alpha-Beta Complex	Sulfite Oxidase	Chain A, domain 2	CATH (4.3.0)
A	2.60.40.650	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
B	3.90.420.10	Alpha Beta	Alpha-Beta Complex	Sulfite Oxidase	Chain A, domain 2	CATH (4.3.0)
B	2.60.40.650	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
C	3.90.420.10	Alpha Beta	Alpha-Beta Complex	Sulfite Oxidase	Chain A, domain 2	CATH (4.3.0)
C	2.60.40.650	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
D	3.90.420.10	Alpha Beta	Alpha-Beta Complex	Sulfite Oxidase	Chain A, domain 2	CATH (4.3.0)
D	2.60.40.650	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00174	Oxidoreductase molybdopterin binding domain (Oxidored_molyb)	Oxidoreductase molybdopterin binding domain	This domain is found in a variety of oxidoreductases. This domain binds to a molybdopterin cofactor. Xanthine dehydrogenases, that also bind molybdopterin, have essentially no similarity.	Domain
A, B, C, D	PF03404	Mo-co oxidoreductase dimerisation domain (Mo-co_dimer)	Mo-co oxidoreductase dimerisation domain	This domain is found in molybdopterin cofactor (Mo-co) oxidoreductases. It is involved in dimer formation, and has an Ig-fold structure [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Putative sulfite oxidase	cation binding transition metal ion binding molybdenum ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity, acting on a sulfur group of donors oxidoreductase activity sulfite oxidase activity oxidoreductase activity, acting on a sulfur group of donors, oxygen as acceptor catalytic activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR000572	Oxidoreductase, molybdopterin-binding domain	Domain
A, B, C, D	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A, B, C, D	IPR006311	Twin-arginine translocation pathway, signal sequence	Conserved Site
A, B, C, D	IPR005066	Moybdenum cofactor oxidoreductase, dimerisation	Domain
A, B, C, D	IPR008335	Eukaryotic molybdopterin oxidoreductase	Family
A, B, C, D	IPR036374	Oxidoreductase, molybdopterin-binding domain superfamily	Homologous Superfamily

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 R01GM133198.