Annotations: 8IUG

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
V [auth L]	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8072655	3000736	SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], EA [auth U], G [auth 6], GA [auth W], I [auth 8], L [auth B], O [auth E], Q [auth G], S [auth I], U [auth K], Y [auth O]	PF00556	Antenna complex alpha/beta subunit (LHC)	Antenna complex alpha/beta subunit	-	Domain
M [auth C]	PF02276	Photosynthetic reaction centre cytochrome C subunit (CytoC_RC)	Photosynthetic reaction centre cytochrome C subunit	-	Family
V [auth L], W [auth M]	PF00124	Photosynthetic reaction centre protein (Photo_RC)	Photosynthetic reaction centre protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], EA [auth U], G [auth 6], GA [auth W], I [auth 8], L [auth B], O [auth E], Q [auth G], S [auth I], U [auth K], Y [auth O]	Antenna complex alpha/beta subunit	electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity chlorophyll binding binding organic cyclic compound binding bacteriochlorophyll binding tetrapyrrole binding cation binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction cellular metabolic process metabolic process cellular process generation of precursor metabolites and energy	cell periphery plasma membrane membrane cellular anatomical entity membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular anatomical structure intracellular vesicle plasma membrane-derived chromatophore intracellular membrane-bounded organelle light-harvesting complex intracellular organelle cytoplasmic vesicle cell periphery plasma membrane membrane cellular anatomical entity membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular anatomical structure intracellular vesicle plasma membrane-derived chromatophore intracellular membrane-bounded organelle light-harvesting complex intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle
B [auth 1], BA [auth R], D [auth 3], DA [auth T], F [auth 5], B [auth 1], BA [auth R], D [auth 3], DA [auth T], F [auth 5], FA [auth V], H [auth 7], J [auth 9], K [auth A], N [auth D], P [auth F], R [auth H], T [auth J], X [auth N], Z [auth P]	Alpha subunit of light-harvesting 1	electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity chlorophyll binding binding organic cyclic compound binding bacteriochlorophyll binding tetrapyrrole binding cation binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction cellular metabolic process metabolic process cellular process generation of precursor metabolites and energy	membrane-bounded organelle intracellular organelle organelle envelope organelle inner membrane intracellular anatomical structure organelle membrane cellular anatomical entity organelle membrane cell periphery plasma membrane plasma membrane light-harvesting complex protein-containing complex intracellular vesicle membrane-bounded organelle intracellular organelle organelle envelope organelle inner membrane intracellular anatomical structure organelle membrane cellular anatomical entity organelle membrane cell periphery plasma membrane plasma membrane light-harvesting complex protein-containing complex intracellular vesicle plasma membrane-derived chromatophore intracellular membrane-bounded organelle light-harvesting complex cytoplasmic vesicle cytoplasm vesicle
M [auth C]	Cytochrome subunit of photosynthetic reaction center	binding organic cyclic compound binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction cellular metabolic process metabolic process cellular process generation of precursor metabolites and energy	membrane cellular anatomical entity membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular anatomical structure intracellular vesicle plasma membrane-derived chromatophore intracellular membrane-bounded organelle light-harvesting complex intracellular organelle cytoplasmic vesicle organelle cytoplasm membrane cellular anatomical entity membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular anatomical structure intracellular vesicle plasma membrane-derived chromatophore intracellular membrane-bounded organelle light-harvesting complex intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle
V [auth L], W [auth M]	Reaction center protein L chain	electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity chlorophyll binding binding organic cyclic compound binding tetrapyrrole binding cation binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction photosynthetic electron transport chain cellular metabolic process electron transport chain photosynthetic electron transport in photosystem II metabolic process cellular process generation of precursor metabolites and energy	membrane cellular anatomical entity membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular anatomical structure intracellular vesicle plasma membrane-derived chromatophore intracellular membrane-bounded organelle light-harvesting complex intracellular organelle cytoplasmic vesicle organelle cytoplasm membrane cellular anatomical entity membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular anatomical structure intracellular vesicle plasma membrane-derived chromatophore intracellular membrane-bounded organelle light-harvesting complex intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle
HA [auth X]	TMx polypeptide	-	-	-
IA [auth Y]	reaction center small polypeptide	-	-	-
JA [auth Z]	reaction center unknown polypeptide	-	-	-
KA [auth h]	reaction center small polypeptide	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], EA [auth U], G [auth 6], GA [auth W], I [auth 8], L [auth B], O [auth E], Q [auth G], S [auth I], U [auth K], Y [auth O]	IPR000066	Antenna complex, alpha/beta subunit	Domain
A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], EA [auth U], G [auth 6], GA [auth W], I [auth 8], L [auth B], O [auth E], Q [auth G], S [auth I], U [auth K], Y [auth O]	IPR023624	Antenna complex, beta domain superfamily	Homologous Superfamily
A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], EA [auth U], G [auth 6], GA [auth W], I [auth 8], L [auth B], O [auth E], Q [auth G], S [auth I], U [auth K], Y [auth O]	IPR035889	Light-harvesting complex	Homologous Superfamily
A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], A [auth 0], AA [auth Q], C [auth 2], CA [auth S], E [auth 4], EA [auth U], G [auth 6], GA [auth W], I [auth 8], L [auth B], O [auth E], Q [auth G], S [auth I], U [auth K], Y [auth O]	IPR002362	Light-harvesting protein B beta chain	Family
B [auth 1], BA [auth R], D [auth 3], DA [auth T], F [auth 5], B [auth 1], BA [auth R], D [auth 3], DA [auth T], F [auth 5], FA [auth V], H [auth 7], J [auth 9], K [auth A], N [auth D], P [auth F], R [auth H], T [auth J], X [auth N], Z [auth P]	IPR002361	Antenna complex, alpha subunit conserved site	Conserved Site
B [auth 1], BA [auth R], D [auth 3], DA [auth T], F [auth 5], B [auth 1], BA [auth R], D [auth 3], DA [auth T], F [auth 5], FA [auth V], H [auth 7], J [auth 9], K [auth A], N [auth D], P [auth F], R [auth H], T [auth J], X [auth N], Z [auth P]	IPR035889	Light-harvesting complex	Homologous Superfamily
M [auth C]	IPR036280	Multiheme cytochrome superfamily	Homologous Superfamily
M [auth C]	IPR023119	Multihaem cytochrome, PRC subunit superfamily	Homologous Superfamily
M [auth C]	IPR003158	Photosynthetic reaction centre, cytochrome c subunit	Family
V [auth L], W [auth M]	IPR036854	Photosystem II protein D1/D2 superfamily	Homologous Superfamily
V [auth L], W [auth M]	IPR000484	Photosynthetic reaction centre, L/M	Family
V [auth L], W [auth M]	IPR005871	Photosynthetic reaction centre, L subunit	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth 0], AA [auth Q], B [auth 1], BA [auth R], C [auth 2] A [auth 0], AA [auth Q], B [auth 1], BA [auth R], C [auth 2], CA [auth S], D [auth 3], DA [auth T], E [auth 4], EA [auth U], F [auth 5], FA [auth V], G [auth 6], GA [auth W], H [auth 7], I [auth 8], J [auth 9], K [auth A], L [auth B], M [auth C], N [auth D], O [auth E], P [auth F], Q [auth G], R [auth H], S [auth I], T [auth J], U [auth K], V [auth L], W [auth M], X [auth N], Y [auth O], Z [auth P]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A [auth 0], AA [auth Q], B [auth 1], BA [auth R], C [auth 2] A [auth 0], AA [auth Q], B [auth 1], BA [auth R], C [auth 2], CA [auth S], D [auth 3], DA [auth T], E [auth 4], EA [auth U], F [auth 5], FA [auth V], G [auth 6], GA [auth W], H [auth 7], I [auth 8], J [auth 9], K [auth A], L [auth B], M [auth C], N [auth D], O [auth E], P [auth F], Q [auth G], R [auth H], S [auth I], T [auth J], U [auth K], V [auth L], W [auth M], X [auth N], Y [auth O], Z [auth P]	MemProtMD	Annotated as membrane protein by MemProtMD

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 R01GM133198.