1GXI | pdb_00001gxi

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth E]	d1gxie_	All beta proteins	SH3-like barrel	Electron transport accessory proteins	Photosystem I accessory protein E (PsaE)	Photosystem I accessory protein E (PsaE)	(Synechocystis sp. PCC 6803 ) [TaxId: 1148 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth E]	SCOP2 Family	Photosystem I accessory protein E (PsaE)	8032096	4001749	SCOP2 (2022-06-29)
A [auth E]	SCOP2 Superfamily	Electron transport accessory proteins	8044474	3000325	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth E]	KOW, Ribosomal_L26	e1gxiE1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: KOW, Ribosomal_L26	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth E]	2.30.30.50	Mainly Beta	Roll	SH3 type barrels.		CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A [auth E]	PF02427	Photosystem I reaction centre subunit IV / PsaE (PSI_PsaE)	Photosystem I reaction centre subunit IV / PsaE	PsaE is a 69 amino acid polypeptide from photosystem I present on the stromal side of the thylakoid membrane [1]. The structure is comprised of a well-defined five-stranded beta-sheet similar to SH3 domains [1].	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth E]	PHOTOSYSTEM I REACTION CENTER SUBUNIT IV	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center

Chains	Accession	Name	Type
A [auth E]	IPR008990	Electron transport accessory-like domain superfamily	Homologous Superfamily
A [auth E]	IPR003375	Photosystem I PsaE, reaction centre subunit IV	Family

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.