5L8R

The structure of plant photosystem I super-complex at 2.6 angstrom resolution.

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
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth 1]	d5l8r1_	Membrane and cell surface proteins and peptides	Chlorophyll a-b binding protein	Chlorophyll a-b binding protein	automated matches	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
B [auth 2]	d5l8r2_	Membrane and cell surface proteins and peptides	Chlorophyll a-b binding protein	Chlorophyll a-b binding protein	automated matches	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
D [auth 4]	d5l8r4_	Membrane and cell surface proteins and peptides	Chlorophyll a-b binding protein	Chlorophyll a-b binding protein	automated matches	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
E [auth A]	d5l8ra_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
G [auth C]	d5l8rc_	Alpha and beta proteins (a+b)	Ferredoxin-like	4Fe-4S ferredoxins	7-Fe ferredoxin	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
H [auth D]	d5l8rd_	Alpha and beta proteins (a+b)	Photosystem I subunit PsaD	Photosystem I subunit PsaD	Photosystem I subunit PsaD	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
I [auth E]	d5l8re1	All beta proteins	SH3-like barrel	Electron transport accessory proteins	automated matches	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
I [auth E]	d5l8re2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
J [auth F]	d5l8rf_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit III of photosystem I reaction centre, PsaF	automated matches	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
N [auth J]	d5l8rj_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit IX of photosystem I reaction centre, PsaJ	automated matches	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
P [auth L]	d5l8rl_	Membrane and cell surface proteins and peptides	Photosystem I reaction center subunit XI, PsaL	Photosystem I reaction center subunit XI, PsaL	automated matches	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
C [auth 3]	d5l8r3_	Membrane and cell surface proteins and peptides	Chlorophyll a-b binding protein	Chlorophyll a-b binding protein	automated matches	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
F [auth B]	d5l8rb_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	automated matches	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth 2]	SCOP2B Superfamily	Chlorophyll a-b binding protein	8076998	3000343	SCOP2B (2022-06-29)
D [auth 4]	SCOP2B Superfamily	Chlorophyll a-b binding protein	8077000	3000343	SCOP2B (2022-06-29)
E [auth A]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074458	3000850	SCOP2B (2022-06-29)
G [auth C]	SCOP2B Superfamily	4Fe-4S ferredoxins	8074478	3000020	SCOP2B (2022-06-29)
H [auth D]	SCOP2B Superfamily	Photosystem I subunit PsaD	8074482	3000951	SCOP2B (2022-06-29)
I [auth E]	SCOP2B Superfamily	Electron transport accessory proteins	8074498	3000325	SCOP2B (2022-06-29)
J [auth F]	SCOP2 Family	Subunit III of photosystem I reaction centre, PsaF	8074441	4002091	SCOP2 (2022-06-29)
J [auth F]	SCOP2 Superfamily	Subunit III of photosystem I reaction centre, PsaF	8074442	3000813	SCOP2 (2022-06-29)
L [auth H]	SCOP2B Superfamily	Photosystem I reaction centre subunit VI	8102525	3002733	SCOP2B (2022-06-29)
N [auth J]	SCOP2 Family	Subunit IX of photosystem I reaction centre, PsaJ	8074521	4002101	SCOP2 (2022-06-29)
N [auth J]	SCOP2 Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8074522	3000824	SCOP2 (2022-06-29)
P [auth L]	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8087174	3000870	SCOP2B (2022-06-29)
C [auth 3]	SCOP2B Superfamily	Chlorophyll a-b binding protein	8076994	3000343	SCOP2B (2022-06-29)
F [auth B]	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8074465	4002118	SCOP2 (2022-06-29)
F [auth B]	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8074466	3000850	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 [auth 1]	Chloroa_b-bind	e5l8r11	A: extended segments	X: Chlorophyll a-b binding protein (From Topology)	H: Chlorophyll a-b binding protein (From Topology)	T: Chlorophyll a-b binding protein	F: Chloroa_b-bind	ECOD (1.6)
B [auth 2]	Chloroa_b-bind	e5l8r21	A: extended segments	X: Chlorophyll a-b binding protein (From Topology)	H: Chlorophyll a-b binding protein (From Topology)	T: Chlorophyll a-b binding protein	F: Chloroa_b-bind	ECOD (1.6)
D [auth 4]	Chloroa_b-bind	e5l8r41	A: extended segments	X: Chlorophyll a-b binding protein (From Topology)	H: Chlorophyll a-b binding protein (From Topology)	T: Chlorophyll a-b binding protein	F: Chloroa_b-bind	ECOD (1.6)
E [auth A]	PsaA_PsaB_C	e5l8rA1	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: PsaA_PsaB_C	ECOD (1.6)
E [auth A]	PsaA_PsaB_N	e5l8rA2	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
G [auth C]	Fer4_21_1	e5l8rC1	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: Fer4_21_1	ECOD (1.6)
H [auth D]	PsaD	e5l8rD1	A: a+b two layers	X: Photosystem I subunit PsaD (From Topology)	H: Photosystem I subunit PsaD (From Topology)	T: Photosystem I subunit PsaD	F: PsaD	ECOD (1.6)
I [auth E]	PSI_PsaE	e5l8rE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
J [auth F]	PSI_PsaF	e5l8rF1	A: extended segments	X: Subunit III of photosystem I reaction centre, PsaF (From Topology)	H: Subunit III of photosystem I reaction centre, PsaF (From Topology)	T: Subunit III of photosystem I reaction centre, PsaF	F: PSI_PsaF	ECOD (1.6)
K [auth G]	PSI_PSAK	e5l8rG1	A: alpha bundles	X: Photosystem I reaction center subunit X, PsaK (From Topology)	H: Photosystem I reaction center subunit X, PsaK (From Topology)	T: Photosystem I reaction center subunit X, PsaK	F: PSI_PSAK	ECOD (1.6)
L [auth H]	PSI_PsaH	e5l8rH1	A: extended segments	X: Subunit VI of Photosystem I reaction centre (From Topology)	H: Subunit VI of Photosystem I reaction centre (From Topology)	T: Subunit VI of Photosystem I reaction centre	F: PSI_PsaH	ECOD (1.6)
N [auth J]	PSI_PsaJ	e5l8rJ1	A: extended segments	X: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	H: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	T: Subunit IX of photosystem I reaction centre, PsaJ	F: PSI_PsaJ	ECOD (1.6)
O [auth K]	PSI_PSAK	e5l8rK1	A: alpha bundles	X: Photosystem I reaction center subunit X, PsaK (From Topology)	H: Photosystem I reaction center subunit X, PsaK (From Topology)	T: Photosystem I reaction center subunit X, PsaK	F: PSI_PSAK	ECOD (1.6)
P [auth L]	PsaL	e5l8rL1	A: alpha bundles	X: Photosystem I reaction center subunit XI, PsaL (From Topology)	H: Photosystem I reaction center subunit XI, PsaL (From Topology)	T: Photosystem I reaction center subunit XI, PsaL	F: PsaL	ECOD (1.6)
M [auth I]	PSI_8	e5l8rI1	A: extended segments	X: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	H: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	T: Subunit VIII of photosystem I reaction centre, PsaI	F: PSI_8	ECOD (1.6)
C [auth 3]	Chloroa_b-bind	e5l8r31	A: extended segments	X: Chlorophyll a-b binding protein (From Topology)	H: Chlorophyll a-b binding protein (From Topology)	T: Chlorophyll a-b binding protein	F: Chloroa_b-bind	ECOD (1.6)
F [auth B]	PsaA_PsaB_C	e5l8rB2	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: PsaA_PsaB_C	ECOD (1.6)
F [auth B]	PsaA_PsaB_N	e5l8rB1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E [auth A]	1.20.1130.10	Mainly Alpha	Up-down Bundle	Photosystem I p700 chlorophyll A apoprotein A1	Photosystem I PsaA/PsaB	CATH (4.3.0)
G [auth C]	3.30.70.20	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
H [auth D]	3.30.1470.10	Alpha Beta	2-Layer Sandwich	Photosystem 1 Reaction Centre Subunit Ii	Chain: D	CATH (4.3.0)
I [auth E]	2.30.30.50	Mainly Beta	Roll	SH3 type barrels.		CATH (4.3.0)
J [auth F]	1.10.8.110	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
N [auth J]	1.20.5.510	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Single helix bin	CATH (4.3.0)
P [auth L]	1.20.1240.10	Mainly Alpha	Up-down Bundle	Photosystem 1 Reaction Centre Subunit Xi	Chain: L	CATH (4.3.0)
F [auth B]	1.20.1130.10	Mainly Alpha	Up-down Bundle	Photosystem I p700 chlorophyll A apoprotein A1	Photosystem I PsaA/PsaB	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth 1]	PF00504	Chlorophyll A-B binding protein (Chloroa_b-bind)	Chlorophyll A-B binding protein	-	Family
B [auth 2]	PF00504	Chlorophyll A-B binding protein (Chloroa_b-bind)	Chlorophyll A-B binding protein	-	Family
D [auth 4]	PF00504	Chlorophyll A-B binding protein (Chloroa_b-bind)	Chlorophyll A-B binding protein	-	Family
E [auth A]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
G [auth C]	PF14697	4Fe-4S dicluster domain (Fer4_21)	4Fe-4S dicluster domain	Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. Domain contai ...	Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. Domain contains two 4Fe4S clusters.	Domain
H [auth D]	PF02531	PsaD (PsaD)	PsaD	-	Family
I [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
J [auth F]	PF02507	Photosystem I reaction centre subunit III (PSI_PsaF)	Photosystem I reaction centre subunit III	-	Family
K [auth G]	PF01241	Photosystem I psaG / psaK (PSI_PSAK)	Photosystem I psaG / psaK	-	Family
L [auth H]	PF03244	Photosystem I reaction centre subunit VI (PSI_PsaH)	Photosystem I reaction centre subunit VI	-	Family
N [auth J]	PF01701	Photosystem I reaction centre subunit IX / PsaJ (PSI_PsaJ)	Photosystem I reaction centre subunit IX / PsaJ	-	Family
O [auth K]	PF01241	Photosystem I psaG / psaK (PSI_PSAK)	Photosystem I psaG / psaK	-	Family
P [auth L]	PF02605	Photosystem I reaction centre subunit XI (PsaL)	Photosystem I reaction centre subunit XI	-	Family
M [auth I]	PF00796	Photosystem I reaction centre subunit VIII (PSI_8)	Photosystem I reaction centre subunit VIII	-	Family
C [auth 3]	PF00504	Chlorophyll A-B binding protein (Chloroa_b-bind)	Chlorophyll A-B binding protein	-	Family
F [auth B]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth 1]	Lhca1	chlorophyll binding binding organic cyclic compound binding tetrapyrrole binding	photosynthesis photosynthesis, light reaction photosynthesis, light harvesting metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid chloroplast thylakoid membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid chloroplast thylakoid membrane membrane-bounded organelle plastid membrane plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope chloroplast intracellular membrane-bounded organelle thylakoid membrane chloroplast thylakoid outer membrane cytoplasm organelle membrane photosystem I
B [auth 2]	Chlorophyll a-b binding protein, chloroplastic	chlorophyll binding binding organic cyclic compound binding tetrapyrrole binding	response to light stimulus response to stimulus response to radiation response to abiotic stimulus photosynthesis, light harvesting in photosystem I photosynthesis photosynthesis, light reaction photosynthesis, light harvesting metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid chloroplast thylakoid membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid chloroplast thylakoid membrane membrane-bounded organelle plastid membrane plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope chloroplast intracellular membrane-bounded organelle thylakoid membrane chloroplast thylakoid outer membrane cytoplasm organelle membrane photosystem I
D [auth 4]	Chlorophyll a-b binding protein P4, chloroplastic	chlorophyll binding binding organic cyclic compound binding tetrapyrrole binding cation binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction photosynthesis, light harvesting metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid chloroplast thylakoid membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid chloroplast thylakoid membrane membrane-bounded organelle plastid membrane plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope chloroplast intracellular membrane-bounded organelle thylakoid membrane chloroplast thylakoid outer membrane cytoplasm organelle membrane photosystem I
E [auth A]	Photosystem I P700 chlorophyll a apoprotein A1	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding chlorophyll binding organic cyclic compound binding tetrapyrrole binding cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding chlorophyll binding organic cyclic compound binding tetrapyrrole binding electron transfer activity	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 thylakoid 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 thylakoid plastid envelope chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
G [auth C]	Photosystem I iron-sulfur center	oxidoreductase activity catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding electron transfer activity cation binding ion binding metal ion binding	photosynthesis photosynthesis, light reaction photosynthetic electron transport chain electron transport chain metabolic process cellular process generation of precursor metabolites and energy photosynthetic electron transport in photosystem I	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 thylakoid 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 thylakoid plastid envelope chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
H [auth D]	PsaD	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid chloroplast thylakoid membrane membrane-bounded organelle plastid membrane plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope chloroplast intracellular membrane-bounded organelle thylakoid membrane chloroplast thylakoid outer membrane cytoplasm organelle membrane
I [auth E]	Putative uncharacterized protein	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid chloroplast thylakoid membrane membrane-bounded organelle plastid membrane plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope chloroplast intracellular membrane-bounded organelle thylakoid membrane chloroplast thylakoid outer membrane cytoplasm organelle membrane
J [auth F]	Photosystem I reaction center subunit III	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid chloroplast thylakoid membrane membrane-bounded organelle plastid membrane plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope chloroplast intracellular membrane-bounded organelle thylakoid membrane chloroplast thylakoid outer membrane cytoplasm organelle membrane plastid thylakoid lumen chloroplast thylakoid lumen thylakoid lumen
K [auth G]	PsaG	-	regulation of biological process regulation of cellular process regulation of photosynthesis photosynthesis photosynthesis, light reaction regulation of photosynthesis, light reaction biological regulation regulation of generation of precursor metabolites and energy generation of precursor metabolites and energy photosystem I stabilization cellular process metabolic process regulation of metabolic process regulation of protein stability regulation of biological process regulation of cellular process regulation of photosynthesis photosynthesis photosynthesis, light reaction regulation of photosynthesis, light reaction biological regulation regulation of generation of precursor metabolites and energy generation of precursor metabolites and energy photosystem I stabilization cellular process metabolic process regulation of metabolic process regulation of protein stability regulation of biological quality protein stabilization photosynthetic electron transport chain electron transport chain photosynthetic electron transport in photosystem I nucleoside phosphate metabolic process nicotinamide nucleotide metabolic process photosynthetic NADP+ reduction primary metabolic process nucleotide metabolic process purine-containing compound metabolic process NADP metabolic process nucleobase-containing compound metabolic process NADPH regeneration purine nucleotide metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process pyridine-containing compound metabolic process small molecule metabolic process phosphorus metabolic process pyridine nucleotide metabolic 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 thylakoid 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 thylakoid plastid envelope chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane chloroplast envelope chloroplast membrane protein-containing complex photosystem photosystem I membrane protein complex chloroplast thylakoid membrane protein complex chloroplast photosystem I nucleus
L [auth H]	Photosystem I reaction center subunit VI	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid chloroplast thylakoid membrane membrane-bounded organelle plastid membrane plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope chloroplast intracellular membrane-bounded organelle thylakoid membrane chloroplast thylakoid outer membrane cytoplasm organelle membrane
N [auth J]	Photosystem I reaction center subunit IX	-	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 thylakoid 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 thylakoid plastid envelope chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
O [auth K]	Photosystem I reaction center subunit X psaK	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid membrane-bounded organelle protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid membrane-bounded organelle plastid cytoplasm intracellular membrane-bounded organelle chloroplast
P [auth L]	Putative uncharacterized protein	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane photosystem I reaction center thylakoid
M [auth I]	Photosystem I reaction center subunit VIII	-	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 thylakoid 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 thylakoid plastid envelope chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
C [auth 3]	Chlorophyll a-b binding protein 3, chloroplastic	chlorophyll binding binding organic cyclic compound binding tetrapyrrole binding cation binding ion binding metal ion binding small molecule binding	response to light stimulus response to stimulus response to radiation response to abiotic stimulus photosynthesis, light harvesting in photosystem I photosynthesis photosynthesis, light reaction photosynthesis, light harvesting metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid membrane-bounded organelle protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid membrane-bounded organelle plastid intracellular membrane-bounded organelle plastoglobule plastid stroma chloroplast stroma cytoplasm chloroplast chloroplast thylakoid membrane plastid membrane organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope thylakoid membrane chloroplast thylakoid outer membrane organelle membrane photosystem I
F [auth B]	Photosystem I P700 chlorophyll a apoprotein A2	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding chlorophyll binding organic cyclic compound binding tetrapyrrole binding cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding chlorophyll binding organic cyclic compound binding tetrapyrrole binding electron transfer activity	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 thylakoid 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 thylakoid plastid envelope chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth 1]	IPR001344	Chlorophyll A-B binding protein, plant and chromista	Family
A [auth 1]	IPR022796	Chlorophyll A-B binding protein	Family
B [auth 2]	IPR001344	Chlorophyll A-B binding protein, plant and chromista	Family
B [auth 2]	IPR022796	Chlorophyll A-B binding protein	Family
D [auth 4]	IPR001344	Chlorophyll A-B binding protein, plant and chromista	Family
D [auth 4]	IPR022796	Chlorophyll A-B binding protein	Family
E [auth A]	IPR006243	Photosystem I PsaA	Family
E [auth A]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
E [auth A]	IPR001280	Photosystem I PsaA/PsaB	Family
E [auth A]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
G [auth C]	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
G [auth C]	IPR050157	Photosystem I iron-sulfur center	Family
G [auth C]	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
G [auth C]	IPR017491	Photosystem I protein PsaC	Family
H [auth D]	IPR003685	Photosystem I PsaD	Family
H [auth D]	IPR036579	Photosystem I, reaction centre subunit PsaD superfamily	Homologous Superfamily
I [auth E]	IPR008990	Electron transport accessory-like domain superfamily	Homologous Superfamily
I [auth E]	IPR003375	Photosystem I PsaE, reaction centre subunit IV	Family
J [auth F]	IPR036577	Photosystem I PsaF, reaction centre subunit III superfamily	Homologous Superfamily
J [auth F]	IPR003666	Photosystem I PsaF, reaction centre subunit III	Family
K [auth G]	IPR023618	Photosystem I PsaG/PsaK domain, chloroplastic	Homologous Superfamily
K [auth G]	IPR016370	Photosystem I reaction center subunit V/PsaK, plant	Family
K [auth G]	IPR000549	Photosystem I reaction center subunit V/PsaK	Family
K [auth G]	IPR017494	Photosystem I reaction center subunit V	Family
L [auth H]	IPR004928	Photosystem I PsaH, reaction centre subunit VI	Family
N [auth J]	IPR002615	Photosystem I PsaJ, reaction centre subunit IX	Family
N [auth J]	IPR036062	Photosystem I PsaJ, reaction centre subunit IX superfamily	Homologous Superfamily
O [auth K]	IPR023618	Photosystem I PsaG/PsaK domain, chloroplastic	Homologous Superfamily
O [auth K]	IPR016370	Photosystem I reaction center subunit V/PsaK, plant	Family
O [auth K]	IPR000549	Photosystem I reaction center subunit V/PsaK	Family
O [auth K]	IPR035982	Photosystem I reaction centre subunit PsaK superfamily	Homologous Superfamily
O [auth K]	IPR017493	Photosystem I reaction center subunit psaK, plant	Family
P [auth L]	IPR003757	Photosystem I PsaL, reaction centre subunit XI	Domain
P [auth L]	IPR022980	Photosystem I, reaction centre subunit XI	Family
P [auth L]	IPR036592	Photosystem I PsaL, reaction centre subunit XI superfamily	Homologous Superfamily
M [auth I]	IPR036357	Photosystem I reaction centre subunit VIII superfamily	Homologous Superfamily
M [auth I]	IPR001302	Photosystem I reaction centre subunit VIII	Family
C [auth 3]	IPR001344	Chlorophyll A-B binding protein, plant and chromista	Family
C [auth 3]	IPR022796	Chlorophyll A-B binding protein	Family
F [auth B]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
F [auth B]	IPR001280	Photosystem I PsaA/PsaB	Family
F [auth B]	IPR006244	Photosystem I PsaB	Family
F [auth B]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth 1], B [auth 2], C [auth 3], D [auth 4], E [auth A] A [auth 1], B [auth 2], C [auth 3], D [auth 4], E [auth A], F [auth B], G [auth C], I [auth E], J [auth F], K [auth G], L [auth H], M [auth I], N [auth J], O [auth K], P [auth L]	OPM	Transmembrane	Alpha-helical polytopic	Photosystems	Photosystem I

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth 1], B [auth 2], C [auth 3], D [auth 4], E [auth A] A [auth 1], B [auth 2], C [auth 3], D [auth 4], E [auth A], F [auth B], G [auth C], I [auth E], J [auth F], K [auth G], L [auth H], M [auth I], N [auth J], O [auth K], P [auth L]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A [auth 1], B [auth 2], C [auth 3], D [auth 4], E [auth A] A [auth 1], B [auth 2], C [auth 3], D [auth 4], E [auth A], F [auth B], G [auth C], I [auth E], J [auth F], K [auth G], L [auth H], M [auth I], N [auth J], O [auth K], P [auth L]	MemProtMD	Annotated as membrane protein by MemProtMD