7Q7Q

LIPIDIC CUBIC PHASE SERIAL FEMTOSECOND CRYSTALLOGRAPHY STRUCTURE OF A PHOTOSYNTHETIC REACTION CENTRE

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: mpstruc
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth CCC]	SCOP2B Superfamily	PRC cytochrome c repeat-like	8042555	3002452	SCOP2B (2022-06-29)
A [auth CCC]	SCOP2B Superfamily	PRC cytochrome c repeat-like	8090734	3002452	SCOP2B (2022-06-29)
B [auth HHH]	SCOP2B Superfamily	PRC-barrel domain	8041991	3000637	SCOP2B (2022-06-29)
B [auth HHH]	SCOP2B Superfamily	Photosystem II reaction centre subunit H, transmembrane region	8037684	3000750	SCOP2B (2022-06-29)
C [auth LLL]	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8042558	3000736	SCOP2B (2022-06-29)
D [auth MMM]	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8042561	3000736	SCOP2B (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 [auth CCC]	CytoC_RC	e7q7qCCC1	A: few secondary structure elements	X: Multiheme cytochromes	H: Photosynthetic reaction centre (cytochrome subunit) (From Topology)	T: Photosynthetic reaction centre (cytochrome subunit)	F: CytoC_RC	ECOD (1.6)
B [auth HHH]	PRCH_C	e7q7qHHH2	A: beta barrels	X: SH3	H: PRC-barrel domain (From Topology)	T: PRC-barrel domain	F: PRCH_C	ECOD (1.6)
B [auth HHH]	PRCH_N	e7q7qHHH1	A: extended segments	X: Photosystem II reaction centre subunit H, transmembrane region (From Topology)	H: Photosystem II reaction centre subunit H, transmembrane region (From Topology)	T: Photosystem II reaction centre subunit H, transmembrane region	F: PRCH_N	ECOD (1.6)
C [auth LLL]	Photo_RC	e7q7qLLL1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: Photo_RC	ECOD (1.6)
D [auth MMM]	Photo_RC	e7q7qMMM1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: Photo_RC	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth CCC]	PF02276	Photosynthetic reaction centre cytochrome C subunit (CytoC_RC)	Photosynthetic reaction centre cytochrome C subunit	-	Family
B [auth HHH]	PF03967	Photosynthetic reaction centre, H-chain N-terminal region (PRCH)	Photosynthetic reaction centre, H-chain N-terminal region	-	Family
B [auth HHH]	PF05239	PRC-barrel domain (PRC)	PRC-barrel domain	The PRC-barrel is an all beta barrel domain found in photosystem reaction centre subunit H of the purple bacteria and RNA metabolism proteins of the RimM group. PRC-barrels are approximately 80 residues long, and found widely represented in bacteria, ...	The PRC-barrel is an all beta barrel domain found in photosystem reaction centre subunit H of the purple bacteria and RNA metabolism proteins of the RimM group. PRC-barrels are approximately 80 residues long, and found widely represented in bacteria, archaea and plants. This domain is also present at the carboxyl terminus of the pan-bacterial protein RimM, which is involved in ribosomal maturation and processing of 16S rRNA. A family of small proteins conserved in all known euryarchaea are composed entirely of a single stand-alone copy of the domain [1].	Domain
C [auth LLL]	PF00124	Photosynthetic reaction centre protein (Photo_RC)	Photosynthetic reaction centre protein	-	Family
D [auth MMM]	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 CCC]	Photosynthetic reaction center cytochrome c subunit	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	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane-derived chromatophore cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle membrane-bounded organelle plasma membrane light-harvesting complex intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane-derived chromatophore cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular vesicle intracellular membrane-bounded organelle light-harvesting complex cytoplasmic vesicle vesicle
B [auth HHH]	Reaction center protein H chain	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	photosynthesis photosynthesis, light reaction cellular metabolic process metabolic process cellular process generation of precursor metabolites and energy	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane-derived chromatophore cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle membrane-bounded organelle plasma membrane light-harvesting complex intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane-derived chromatophore cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular vesicle intracellular membrane-bounded organelle light-harvesting complex cytoplasmic vesicle vesicle
C [auth LLL]	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 bacteriochlorophyll 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	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane-derived chromatophore cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle membrane-bounded organelle plasma membrane light-harvesting complex intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane-derived chromatophore cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular vesicle intracellular membrane-bounded organelle light-harvesting complex cytoplasmic vesicle vesicle
D [auth MMM]	Reaction center protein M chain	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 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	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane-derived chromatophore cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle membrane-bounded organelle plasma membrane light-harvesting complex intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane-derived chromatophore cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle membrane-bounded organelle plasma membrane light-harvesting complex protein-containing complex intracellular vesicle intracellular membrane-bounded organelle light-harvesting complex cytoplasmic vesicle vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth CCC]	IPR036280	Multiheme cytochrome superfamily	Homologous Superfamily
A [auth CCC]	IPR023119	Multihaem cytochrome, PRC subunit superfamily	Homologous Superfamily
A [auth CCC]	IPR003158	Photosynthetic reaction centre, cytochrome c subunit	Family
B [auth HHH]	IPR014747	Bacterial photosynthetic reaction centre, H-chain, C-terminal	Homologous Superfamily
B [auth HHH]	IPR015810	Photosynthetic reaction centre, H subunit, N-terminal	Domain
B [auth HHH]	IPR005652	Photosynthetic reaction centre, H subunit	Family
B [auth HHH]	IPR037097	Photosynthetic reaction centre, H subunit, N-terminal domain superfamily	Homologous Superfamily
B [auth HHH]	IPR011033	PRC-barrel-like superfamily	Homologous Superfamily
B [auth HHH]	IPR027275	PRC-barrel domain	Domain
C [auth LLL]	IPR036854	Photosystem II protein D1/D2 superfamily	Homologous Superfamily
C [auth LLL]	IPR000484	Photosynthetic reaction centre, L/M	Family
C [auth LLL]	IPR005871	Photosynthetic reaction centre, L subunit	Family
D [auth MMM]	IPR036854	Photosystem II protein D1/D2 superfamily	Homologous Superfamily
D [auth MMM]	IPR005781	Photosynthetic reaction centre, M subunit	Family
D [auth MMM]	IPR000484	Photosynthetic reaction centre, L/M	Family

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth CCC], B [auth HHH], C [auth LLL], D [auth MMM]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Photosynthetic Reaction Centers	Photosynthetic Reaction Center, lipidic cubic phase for femtosecond crystallography, at SACLA

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B [auth HHH]	FME	Parent Component: MET RESID: AA0021 , AA0566 PSI-MOD : N-formyl-L-methionine residue MOD:00030 , N-formyl-L-methionine (Met) MOD:00482 , N-[(L-histidin-1'-yl)methyl]-L-methionine (fMet) MOD:01890 , N-[(L-histidin-1'-yl)methyl]-L-methionine (Met) MOD:01891

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.