Annotations: 3LS0

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PsbQ_1	e3ls0A1	A: alpha bundles	X: Four-helical up-and-down bundle	H: Oxygen-evolving enhancer protein 3 (From Topology)	T: Oxygen-evolving enhancer protein 3	F: PsbQ_1	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.120.290	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Oxygen-evolving enhancer protein 3 (PsbQ), four-helix up-down bundle	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Sll1638 protein	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding	photosynthesis metabolic process cellular process	protein-containing complex intracellular anatomical structure photosystem plasma membrane protein complex photosystem II membrane plasma membrane membrane protein complex intracellular membraneless organelle cell periphery intracellular organelle cellular anatomical structure organelle membraneless organelle protein-containing complex intracellular anatomical structure photosystem plasma membrane protein complex photosystem II membrane plasma membrane membrane protein complex intracellular membraneless organelle cell periphery intracellular organelle cellular anatomical structure organelle membraneless organelle plasma membrane-derived thylakoid photosystem II bacterial thylakoid cytoplasm photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane-derived chromatophore thylakoid membrane plasma membrane-derived thylakoid membrane plasma membrane region extrinsic component of membrane catalytic complex photosystem II oxygen evolving complex oxidoreductase complex

Chains	Accession	Name	Type
A	IPR017487	Photosystem II PsbQ, cyanobacteria	Family
A	IPR008797	Oxygen-evolving enhancer protein 3	Family
A	IPR023222	PsbQ-like domain superfamily	Homologous Superfamily