Annotations: 6PNJ

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
G	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8094527	3000850	SCOP2B (2022-06-29)
A	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8094526	4002118	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8094527	3000850	SCOP2 (2022-06-29)
Y [auth a]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8094527	3000850	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8093900	3000850	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8093900	3000850	SCOP2B (2022-06-29)
Z [auth b]	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8093899	4002118	SCOP2 (2022-06-29)
Z [auth b]	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8093900	3000850	SCOP2 (2022-06-29)
AA [auth c]	SCOP2B Superfamily	4Fe-4S ferredoxins	8093754	3000020	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	4Fe-4S ferredoxins	8093754	3000020	SCOP2B (2022-06-29)
N	SCOP2 Family	7-Fe ferredoxin	8093753	4001227	SCOP2 (2022-06-29)
N	SCOP2 Superfamily	4Fe-4S ferredoxins	8093754	3000020	SCOP2 (2022-06-29)
D	SCOP2B Superfamily	Photosystem I subunit PsaD	8094705	3000951	SCOP2B (2022-06-29)
O	SCOP2 Family	Photosystem I subunit PsaD	8094704	4003498	SCOP2 (2022-06-29)
O	SCOP2 Superfamily	Photosystem I subunit PsaD	8094705	3000951	SCOP2 (2022-06-29)
BA [auth d]	SCOP2B Superfamily	Photosystem I subunit PsaD	8094705	3000951	SCOP2B (2022-06-29)
CA [auth e]	SCOP2B Superfamily	Electron transport accessory proteins	8093902	3000325	SCOP2B (2022-06-29)
E	SCOP2 Family	Photosystem I accessory protein E (PsaE)	8093901	4001749	SCOP2 (2022-06-29)
E	SCOP2 Superfamily	Electron transport accessory proteins	8093902	3000325	SCOP2 (2022-06-29)
P	SCOP2B Superfamily	Electron transport accessory proteins	8093902	3000325	SCOP2B (2022-06-29)
L	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8094158	3000870	SCOP2B (2022-06-29)
HA [auth l]	SCOP2 Family	Photosystem I reaction center subunit XI, PsaL	8094157	4002135	SCOP2 (2022-06-29)
HA [auth l]	SCOP2 Superfamily	Photosystem I reaction center subunit XI, PsaL	8094158	3000870	SCOP2 (2022-06-29)
U	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8094158	3000870	SCOP2B (2022-06-29)
IA [auth m]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8094052	3000829	SCOP2B (2022-06-29)
M	SCOP2 Family	Subunit XII of photosystem I reaction centre, PsaM	8094051	4002104	SCOP2 (2022-06-29)
M	SCOP2 Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8094052	3000829	SCOP2 (2022-06-29)
V	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8094052	3000829	SCOP2B (2022-06-29)
W	SCOP2 Family	Subunit PsaX of photosystem I reaction centre	8094528	4002108	SCOP2 (2022-06-29)
W	SCOP2 Superfamily	Subunit PsaX of photosystem I reaction centre	8094529	3000838	SCOP2 (2022-06-29)
X	SCOP2B Superfamily	Subunit PsaX of photosystem I reaction centre	8094529	3000838	SCOP2B (2022-06-29)
JA [auth x]	SCOP2B Superfamily	Subunit PsaX of photosystem I reaction centre	8094529	3000838	SCOP2B (2022-06-29)
DA [auth f]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8095299	3000813	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8095299	3000813	SCOP2B (2022-06-29)
Q	SCOP2 Family	Subunit III of photosystem I reaction centre, PsaF	8095298	4002091	SCOP2 (2022-06-29)
Q	SCOP2 Superfamily	Subunit III of photosystem I reaction centre, PsaF	8095299	3000813	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)
G	PsaA_PsaB_C	e6pnjG2	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)
G	PsaA_PsaB_N	e6pnjG1	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)
A	PsaA_PsaB_C	e6pnjA1	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)
A	PsaA_PsaB_N	e6pnjA2	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)
Y [auth a]	PsaA_PsaB_C	e6pnja1	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)
Y [auth a]	PsaA_PsaB_N	e6pnja2	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)
B	PsaA_PsaB_C	e6pnjB2	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)
B	PsaA_PsaB_N	e6pnjB1	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)
H	PsaA_PsaB_C	e6pnjH1	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)
H	PsaA_PsaB_N	e6pnjH2	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)
Z [auth b]	PsaA_PsaB_C	e6pnjb2	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)
Z [auth b]	PsaA_PsaB_N	e6pnjb1	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)
AA [auth c]	Fer4_21_1	e6pnjc1	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)
C	Fer4_21_1	e6pnjC1	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)
N	Fer4_21_1	e6pnjN1	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)
D	PsaD	e6pnjD1	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)
O	PsaD	e6pnjO1	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)
BA [auth d]	PsaD	e6pnjd1	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)
CA [auth e]	PSI_PsaE	e6pnje1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
E	PSI_PsaE	e6pnjE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
P	PSI_PsaE	e6pnjP1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
FA [auth j]	PSI_PsaJ	e6pnjj1	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)
J	PSI_PsaJ	e6pnjJ1	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)
S	PSI_PsaJ	e6pnjS1	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)
L	PsaL	e6pnjL1	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)
HA [auth l]	PsaL	e6pnjl1	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)
U	PsaL	e6pnjU1	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)
IA [auth m]	PsaM	e6pnjm1	A: extended segments	X: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	H: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	T: Subunit XII of photosystem I reaction centre, PsaM	F: PsaM	ECOD (1.6)
M	PsaM	e6pnjM1	A: extended segments	X: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	H: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	T: Subunit XII of photosystem I reaction centre, PsaM	F: PsaM	ECOD (1.6)
V	PsaM	e6pnjV1	A: extended segments	X: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	H: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	T: Subunit XII of photosystem I reaction centre, PsaM	F: PsaM	ECOD (1.6)
W	PsaX	e6pnjW1	A: extended segments	X: Subunit PsaX of photosystem I reaction centre (From Topology)	H: Subunit PsaX of photosystem I reaction centre (From Topology)	T: Subunit PsaX of photosystem I reaction centre	F: PsaX	ECOD (1.6)
X	PsaX	e6pnjX1	A: extended segments	X: Subunit PsaX of photosystem I reaction centre (From Topology)	H: Subunit PsaX of photosystem I reaction centre (From Topology)	T: Subunit PsaX of photosystem I reaction centre	F: PsaX	ECOD (1.6)
JA [auth x]	PsaX	e6pnjx1	A: extended segments	X: Subunit PsaX of photosystem I reaction centre (From Topology)	H: Subunit PsaX of photosystem I reaction centre (From Topology)	T: Subunit PsaX of photosystem I reaction centre	F: PsaX	ECOD (1.6)
DA [auth f]	PSI_PsaF	e6pnjf1	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)
F	PSI_PsaF	e6pnjF1	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)
Q	PSI_PsaF	e6pnjQ1	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)
EA [auth i]	PSI_8	e6pnji1	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)
I	PSI_8	e6pnjI1	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)
R	PSI_8	e6pnjR1	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)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
G	1.20.1130.10	Mainly Alpha	Up-down Bundle	Photosystem I p700 chlorophyll A apoprotein A1	Photosystem I PsaA/PsaB	CATH (utative)
A	1.20.1130.10	Mainly Alpha	Up-down Bundle	Photosystem I p700 chlorophyll A apoprotein A1	Photosystem I PsaA/PsaB	CATH (utative)
Y [auth a]	1.20.1130.10	Mainly Alpha	Up-down Bundle	Photosystem I p700 chlorophyll A apoprotein A1	Photosystem I PsaA/PsaB	CATH (utative)
B	1.20.1130.10	Mainly Alpha	Up-down Bundle	Photosystem I p700 chlorophyll A apoprotein A1	Photosystem I PsaA/PsaB	CATH (utative)
H	1.20.1130.10	Mainly Alpha	Up-down Bundle	Photosystem I p700 chlorophyll A apoprotein A1	Photosystem I PsaA/PsaB	CATH (utative)
Z [auth b]	1.20.1130.10	Mainly Alpha	Up-down Bundle	Photosystem I p700 chlorophyll A apoprotein A1	Photosystem I PsaA/PsaB	CATH (utative)
AA [auth c]	3.30.70.20	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (utative)
C	3.30.70.20	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (utative)
N	3.30.70.20	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (utative)
D	3.30.1470.10	Alpha Beta	2-Layer Sandwich	Photosystem 1 Reaction Centre Subunit Ii	Chain: D	CATH (utative)
O	3.30.1470.10	Alpha Beta	2-Layer Sandwich	Photosystem 1 Reaction Centre Subunit Ii	Chain: D	CATH (utative)
BA [auth d]	3.30.1470.10	Alpha Beta	2-Layer Sandwich	Photosystem 1 Reaction Centre Subunit Ii	Chain: D	CATH (utative)
CA [auth e]	2.30.30.50	Mainly Beta	Roll	SH3 type barrels.		CATH (utative)
E	2.30.30.50	Mainly Beta	Roll	SH3 type barrels.		CATH (utative)
P	2.30.30.50	Mainly Beta	Roll	SH3 type barrels.		CATH (utative)
FA [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 (utative)
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 (utative)
S	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 (utative)
L	1.20.1240.10	Mainly Alpha	Up-down Bundle	Photosystem 1 Reaction Centre Subunit Xi	Chain: L	CATH (utative)
HA [auth l]	1.20.1240.10	Mainly Alpha	Up-down Bundle	Photosystem 1 Reaction Centre Subunit Xi	Chain: L	CATH (utative)
U	1.20.1240.10	Mainly Alpha	Up-down Bundle	Photosystem 1 Reaction Centre Subunit Xi	Chain: L	CATH (utative)
DA [auth f]	1.10.8.110	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (utative)
F	1.10.8.110	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (utative)
Q	1.10.8.110	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, G, Y [auth a]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
B, H, Z [auth b]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
AA [auth c], C, N	PF12838	4Fe-4S dicluster domain (Fer4_7)	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
BA [auth d], D, O	PF02531	PsaD (PsaD)	PsaD	-	Family
CA [auth e], E, P	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
FA [auth j], J, S	PF01701	Photosystem I reaction centre subunit IX / PsaJ (PSI_PsaJ)	Photosystem I reaction centre subunit IX / PsaJ	-	Family
GA [auth k], K, T	PF01241	Photosystem I psaG / psaK (PSI_PSAK)	Photosystem I psaG / psaK	-	Family
HA [auth l], L, U	PF02605	Photosystem I reaction centre subunit XI (PsaL)	Photosystem I reaction centre subunit XI	-	Family
IA [auth m], M, V	PF07465	Photosystem I protein M (PsaM) (PsaM)	Photosystem I protein M (PsaM)	-	Family
DA [auth f], F, Q	PF02507	Photosystem I reaction centre subunit III (PSI_PsaF)	Photosystem I reaction centre subunit III	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, G, Y [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 cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex
B, H, Z [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 cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex
AA [auth c], C, N	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 cellular metabolic process electron transport chain metabolic process cellular process generation of precursor metabolites and energy photosynthetic electron transport in photosystem I	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex
BA [auth d], D, O	Photosystem I protein PsaD	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
CA [auth e], E, P	Photosystem I reaction center subunit IV	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
FA [auth j], J, S	Photosystem I reaction centre subunit IX / PsaJ	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex
GA [auth k], K, T	photosystem I reaction center subunit PsaK	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular organelle intracellular anatomical structure organelle membrane intracellular non-membrane-bounded organelle photosynthetic membrane cellular anatomical entity thylakoid membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex
HA [auth l], L, U	Photosystem I reaction center protein subunit XI	-	photosynthesis cellular metabolic process metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem I membrane membrane protein complex cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle photosynthetic membrane photosystem I reaction center thylakoid non-membrane-bounded organelle
IA [auth m], M, V	Photosystem I reaction center subunit XII	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex
JA [auth x], W, X	Photosystem one PsaX	-	-	membrane cellular anatomical entity
DA [auth f], F, Q	Photosystem I reaction center protein PsaF subunit III	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
EA [auth i], I, R	photosystem I subunit VIII	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, G, Y [auth a]	IPR006243	Photosystem I PsaA	Family
A, G, Y [auth a]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
A, G, Y [auth a]	IPR001280	Photosystem I PsaA/PsaB	Family
A, G, Y [auth a]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
B, H, Z [auth b]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
B, H, Z [auth b]	IPR001280	Photosystem I PsaA/PsaB	Family
B, H, Z [auth b]	IPR006244	Photosystem I PsaB	Family
B, H, Z [auth b]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
AA [auth c], C, N	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
AA [auth c], C, N	IPR050157	Photosystem I iron-sulfur center	Family
AA [auth c], C, N	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
AA [auth c], C, N	IPR017491	Photosystem I protein PsaC	Family
BA [auth d], D, O	IPR003685	Photosystem I PsaD	Family
BA [auth d], D, O	IPR036579	Photosystem I, reaction centre subunit PsaD superfamily	Homologous Superfamily
CA [auth e], E, P	IPR008990	Electron transport accessory-like domain superfamily	Homologous Superfamily
CA [auth e], E, P	IPR003375	Photosystem I PsaE, reaction centre subunit IV	Family
FA [auth j], J, S	IPR002615	Photosystem I PsaJ, reaction centre subunit IX	Family
FA [auth j], J, S	IPR036062	Photosystem I PsaJ, reaction centre subunit IX superfamily	Homologous Superfamily
GA [auth k], K, T	IPR037101	Photosystem I reaction centre subunit PsaK	Homologous Superfamily
GA [auth k], K, T	IPR000549	Photosystem I reaction center subunit V/PsaK	Family
GA [auth k], K, T	IPR035982	Photosystem I reaction centre subunit PsaK superfamily	Homologous Superfamily
GA [auth k], K, T	IPR017492	Photosystem I reaction center subunit PsaK	Family
HA [auth l], L, U	IPR003757	Photosystem I PsaL, reaction centre subunit XI	Domain
HA [auth l], L, U	IPR022980	Photosystem I, reaction centre subunit XI	Family
HA [auth l], L, U	IPR036592	Photosystem I PsaL, reaction centre subunit XI superfamily	Homologous Superfamily
IA [auth m], M, V	IPR010010	Photosystem I PsaM, reaction centre	Family
IA [auth m], M, V	IPR037279	Photosystem I PsaM, reaction centre superfamily	Homologous Superfamily
JA [auth x], W, X	IPR036243	Photosystem I PsaX superfamily	Homologous Superfamily
JA [auth x], W, X	IPR012986	Photosystem I PsaX	Family
DA [auth f], F, Q	IPR036577	Photosystem I PsaF, reaction centre subunit III superfamily	Homologous Superfamily
DA [auth f], F, Q	IPR003666	Photosystem I PsaF, reaction centre subunit III	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, AA [auth c], B, C, CA [auth e] A, AA [auth c], B, C, CA [auth e], DA [auth f], E, F, FA [auth j], G, GA [auth k], H, HA [auth l], IA [auth m], J, JA [auth x], K, L, M, N, P, Q, S, T, U, V, W, X, Y [auth a], Z [auth b]	OPM	Transmembrane	Alpha-helical polytopic	Photosystems	Photosystem I

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, AA [auth c], B, C, CA [auth e] A, AA [auth c], B, C, CA [auth e], DA [auth f], E, F, FA [auth j], G, GA [auth k], H, HA [auth l], IA [auth m], J, JA [auth x], K, L, M, N, P, Q, S, T, U, V, W, X, Y [auth a], Z [auth b]	PDBTM	Annotated as membrane protein by PDBTM