4PW9 | pdb_00004pw9

Crystal structure of the electron-transfer complex formed between a sulfite dehydrogenase and a c-type cytochrome from Sinorhizobium meliloti

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e4pw9B1	A: Ribosomal protein S7	X: Ribosomal protein S7	H: Ribosomal protein S7	T: Clat_adaptor_s	F:	ECOD (20:10:01)
A		e4pw9A1	A: TBP-like	X: Phage tail fiber protein trimerization domain	H: Phage tail fiber protein trimerization domain	T: FG-GAP_3	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF13442	Cytochrome C oxidase, cbb3-type, subunit III (Cytochrome_CBB3)	Cytochrome C oxidase, cbb3-type, subunit III		Domain
A	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	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
B	Putative cytochrome C	binding tetrapyrrole binding heme binding electron transfer activity cation binding ion binding metal ion binding small molecule binding	-	-
A	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 molybdopterin cofactor binding tetrapyrrole binding 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 molybdopterin cofactor binding tetrapyrrole binding heme binding	sulfur compound metabolic process metabolic process cellular process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
B	IPR009056	Cytochrome c-like domain	Domain
A	IPR000572	Oxidoreductase, molybdopterin-binding domain	Domain
A	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A	IPR006311	Twin-arginine translocation pathway, signal sequence	Conserved Site
A	IPR005066	Moybdenum cofactor oxidoreductase, dimerisation	Domain
A	IPR008335	Eukaryotic molybdopterin oxidoreductase	Family
A	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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.