3SID

Crystal structure of oxidized Symerythrin from Cyanophora paradoxa, azide adduct at 50% occupancy

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)
A	Rubrerythrin	e3sidA1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: Ferritin/Heme oxygenase	T: Ferritin	F: Rubrerythrin	ECOD (1.6)
B	Rubrerythrin	e3sidB1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: Ferritin/Heme oxygenase	T: Ferritin	F: Rubrerythrin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1260.10	Mainly Alpha	Up-down Bundle	Ferritin	Ferritin, core subunit, four-helix bundle	CATH (4.3.0)
B	1.20.1260.10	Mainly Alpha	Up-down Bundle	Ferritin	Ferritin, core subunit, four-helix bundle	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02915	Rubrerythrin (Rubrerythrin)	Rubrerythrin	This domain has a ferritin-like fold.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Symerythrin	oxidoreductase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	-	membrane-bounded organelle intracellular organelle intracellular anatomical structure plastid cyanelle organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR009040	Ferritin-like diiron domain	Domain
A, B	IPR012347	Ferritin-like	Homologous Superfamily
A, B	IPR009078	Ferritin-like superfamily	Homologous Superfamily
A, B	IPR003251	Rubrerythrin, diiron-binding domain	Domain

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.