1V2B

Crystal Structure of PsbP Protein in the Oxygen-Evolving Complex of Photosystem II from Higher Plants

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1v2ba_	Alpha and beta proteins (a+b)	Mog1p/PsbP-like	Mog1p/PsbP-like	PsbP-like	Oxygen-evolving enhancer protein PsbP	common tobacco (Nicotiana tabacum ) [TaxId: 4097 ],	SCOPe (2.08)
B	d1v2bb_	Alpha and beta proteins (a+b)	Mog1p/PsbP-like	Mog1p/PsbP-like	PsbP-like	Oxygen-evolving enhancer protein PsbP	common tobacco (Nicotiana tabacum ) [TaxId: 4097 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Mog1p/PsbP-like	8041132	3000396	SCOP2B (2022-06-29)
B	SCOP2 Family	PsbP-like	8028753	4002692	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Mog1p/PsbP-like	8041132	3000396	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PsbP	e1v2bA1	A: a+b three layers	X: Mog1p/PsbP-like	H: Mog1p/PsbP-like (From Topology)	T: Mog1p/PsbP-like	F: PsbP	ECOD (1.6)
B	PsbP	e1v2bB1	A: a+b three layers	X: Mog1p/PsbP-like	H: Mog1p/PsbP-like (From Topology)	T: Mog1p/PsbP-like	F: PsbP	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.1000.10	Alpha Beta	3-Layer(aba) Sandwich	Protein Transport Mog1p	Chain A	CATH (4.3.0)
B	3.40.1000.10	Alpha Beta	3-Layer(aba) Sandwich	Protein Transport Mog1p	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01789	PsbP (PsbP)	PsbP	This entry consists of the 23 kDa subunit of oxygen evolving system of photosystem II or PsbP from various plants (where it is encoded by the nuclear genome) and Cyanobacteria (known as CyanoP). The 23 KDa PsbP protein is required for PSII to be ful ...	This entry consists of the 23 kDa subunit of oxygen evolving system of photosystem II or PsbP from various plants (where it is encoded by the nuclear genome) and Cyanobacteria (known as CyanoP). The 23 KDa PsbP protein is required for PSII to be fully operational in vivo, it increases the affinity of the water oxidation site for Cl- and provides the conditions required for high affinity binding of Ca2+ [2]. Structure of CyanoP from Synechocystis sp. revealed that it has an alpha-beta-alpha fold containing 10 beta strands organized into two anti-parallel beta-sheets, packed against alpha-helices. This entry covers the first seven beta-stands (beta1-beta7) and the N-terminal alpha-helix [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	23-kDa polypeptide of photosystem II oxygen-evolving complex	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding	photosynthesis metabolic process cellular process	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope thylakoid chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane extrinsic component of membrane protein-containing complex photosystem catalytic complex photosystem II membrane protein complex photosystem II oxygen evolving complex oxidoreductase complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002683	PsbP, C-terminal	Domain
A, B	IPR016123	Mog1/PsbP, alpha/beta/alpha sandwich	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.