3QHB | pdb_00003qhb

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e3qhbB1	A: Alpha-beta plaits	X: Phage tail protein-like	H: Transmembrane protein 14A	T: PQQ_2	F:	ECOD (20:10:01)
A		e3qhbA1	A: Thioredoxin-like	X: Thioredoxin-like	H: Thioredoxin-like	T: Rubrerythrin	F:	ECOD (20:10:01)

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

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

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
A, B	IPR052753	Rubrerythrin-2/Nigerythrin	Family