7DR2

Structure of GraFix PSI tetramer from Cyanophora paradoxa

External Resource: Annotation

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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth aA]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8106471	3000850	SCOP2B (2022-06-29)
GA [auth dA]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8106471	3000850	SCOP2B (2022-06-29)
L [auth bA]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8106471	3000850	SCOP2B (2022-06-29)
V [auth cA]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8106471	3000850	SCOP2B (2022-06-29)
B [auth aB]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8106555	3000850	SCOP2B (2022-06-29)
HA [auth dB]	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8106554	4002118	SCOP2 (2022-06-29)
HA [auth dB]	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8106555	3000850	SCOP2 (2022-06-29)
M [auth bB]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8106555	3000850	SCOP2B (2022-06-29)
W [auth cB]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8106555	3000850	SCOP2B (2022-06-29)
C [auth aC]	SCOP2B Superfamily	4Fe-4S ferredoxins	8106553	3000020	SCOP2B (2022-06-29)
IA [auth dC]	SCOP2B Superfamily	4Fe-4S ferredoxins	8106553	3000020	SCOP2B (2022-06-29)
N [auth bC]	SCOP2B Superfamily	4Fe-4S ferredoxins	8106553	3000020	SCOP2B (2022-06-29)
X [auth cC]	SCOP2 Family	7-Fe ferredoxin	8106552	4001227	SCOP2 (2022-06-29)
X [auth cC]	SCOP2 Superfamily	4Fe-4S ferredoxins	8106553	3000020	SCOP2 (2022-06-29)
D [auth aD]	SCOP2B Superfamily	Photosystem I subunit PsaD	8106639	3000951	SCOP2B (2022-06-29)
JA [auth dD]	SCOP2 Family	Photosystem I subunit PsaD	8106638	4003498	SCOP2 (2022-06-29)
JA [auth dD]	SCOP2 Superfamily	Photosystem I subunit PsaD	8106639	3000951	SCOP2 (2022-06-29)
O [auth bD]	SCOP2B Superfamily	Photosystem I subunit PsaD	8106639	3000951	SCOP2B (2022-06-29)
Y [auth cD]	SCOP2B Superfamily	Photosystem I subunit PsaD	8106639	3000951	SCOP2B (2022-06-29)
E [auth aE]	SCOP2B Superfamily	Electron transport accessory proteins	8106557	3000325	SCOP2B (2022-06-29)
KA [auth dE]	SCOP2B Superfamily	Electron transport accessory proteins	8106557	3000325	SCOP2B (2022-06-29)
P [auth bE]	SCOP2B Superfamily	Electron transport accessory proteins	8106557	3000325	SCOP2B (2022-06-29)
Z [auth cE]	SCOP2B Superfamily	Electron transport accessory proteins	8106557	3000325	SCOP2B (2022-06-29)
AA [auth cF]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8106559	3000813	SCOP2B (2022-06-29)
F [auth aF]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8106559	3000813	SCOP2B (2022-06-29)
LA [auth dF]	SCOP2 Family	Subunit III of photosystem I reaction centre, PsaF	8106558	4002091	SCOP2 (2022-06-29)
LA [auth dF]	SCOP2 Superfamily	Subunit III of photosystem I reaction centre, PsaF	8106559	3000813	SCOP2 (2022-06-29)
Q [auth bF]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8106559	3000813	SCOP2B (2022-06-29)
BA [auth cI]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8106561	3000819	SCOP2B (2022-06-29)
G [auth aI]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8106561	3000819	SCOP2B (2022-06-29)
MA [auth dI]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8106561	3000819	SCOP2B (2022-06-29)
R [auth bI]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8106561	3000819	SCOP2B (2022-06-29)
CA [auth cJ]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8106563	3000824	SCOP2B (2022-06-29)
H [auth aJ]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8106563	3000824	SCOP2B (2022-06-29)
NA [auth dJ]	SCOP2 Family	Subunit IX of photosystem I reaction centre, PsaJ	8106562	4002101	SCOP2 (2022-06-29)
NA [auth dJ]	SCOP2 Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8106563	3000824	SCOP2 (2022-06-29)
S [auth bJ]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8106563	3000824	SCOP2B (2022-06-29)
FA [auth cM]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8106565	3000829	SCOP2B (2022-06-29)
K [auth aM]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8106565	3000829	SCOP2B (2022-06-29)
PA [auth dM]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8106565	3000829	SCOP2B (2022-06-29)
U [auth bM]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8106565	3000829	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 aA]	PsaA_PsaB_C	e7dr2aA1	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 [auth aA]	PsaA_PsaB_N	e7dr2aA2	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)
GA [auth dA]	PsaA_PsaB_C	e7dr2dA1	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)
GA [auth dA]	PsaA_PsaB_N	e7dr2dA2	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)
L [auth bA]	PsaA_PsaB_C	e7dr2bA1	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)
L [auth bA]	PsaA_PsaB_N	e7dr2bA2	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)
V [auth cA]	PsaA_PsaB_C	e7dr2cA1	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)
V [auth cA]	PsaA_PsaB_N	e7dr2cA2	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 [auth aB]	PsaA_PsaB_C	e7dr2aB2	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 [auth aB]	PsaA_PsaB_N	e7dr2aB1	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)
HA [auth dB]	PsaA_PsaB_C	e7dr2dB1	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)
HA [auth dB]	PsaA_PsaB_N	e7dr2dB2	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)
M [auth bB]	PsaA_PsaB_C	e7dr2bB2	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)
M [auth bB]	PsaA_PsaB_N	e7dr2bB1	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)
W [auth cB]	PsaA_PsaB_C	e7dr2cB1	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)
W [auth cB]	PsaA_PsaB_N	e7dr2cB2	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)
C [auth aC]	Fer4_21_1	e7dr2aC1	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)
IA [auth dC]	Fer4_21_1	e7dr2dC1	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 [auth bC]	Fer4_21_1	e7dr2bC1	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)
X [auth cC]	Fer4_21_1	e7dr2cC1	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 [auth aD]	PsaD	e7dr2aD1	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)
JA [auth dD]	PsaD	e7dr2dD1	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 [auth bD]	PsaD	e7dr2bD1	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)
Y [auth cD]	PsaD	e7dr2cD1	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)
E [auth aE]	PSI_PsaE	e7dr2aE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
KA [auth dE]	PSI_PsaE	e7dr2dE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
P [auth bE]	PSI_PsaE	e7dr2bE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
Z [auth cE]	PSI_PsaE	e7dr2cE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
AA [auth cF]	PSI_PsaF	e7dr2cF1	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 [auth aF]	PSI_PsaF	e7dr2aF1	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)
LA [auth dF]	PSI_PsaF	e7dr2dF1	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 [auth bF]	PSI_PsaF	e7dr2bF1	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)
BA [auth cI]	PSI_8	e7dr2cI1	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)
G [auth aI]	PSI_8	e7dr2aI1	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)
MA [auth dI]	PSI_8	e7dr2dI1	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 [auth bI]	PSI_8	e7dr2bI1	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)
CA [auth cJ]	PSI_PsaJ	e7dr2cJ1	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)
H [auth aJ]	PSI_PsaJ	e7dr2aJ1	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)
NA [auth dJ]	PSI_PsaJ	e7dr2dJ1	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 [auth bJ]	PSI_PsaJ	e7dr2bJ1	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)
DA [auth cK]	PSI_PSAK	e7dr2cK1	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)
I [auth aK]	PSI_PSAK	e7dr2aK1	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)
EA [auth cL]	PsaL	e7dr2cL1	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)
J [auth aL]	PsaL	e7dr2aL1	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)
OA [auth dL]	PsaL	e7dr2dL1	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)
T [auth bL]	PsaL	e7dr2bL1	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)
FA [auth cM]	PsaM	e7dr2cM1	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)
K [auth aM]	PsaM	e7dr2aM1	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)
PA [auth dM]	PsaM	e7dr2dM1	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)
U [auth bM]	PsaM	e7dr2bM1	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)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth aA], GA [auth dA], L [auth bA], V [auth cA]	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 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 plastid envelope chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope thylakoid chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
B [auth aB], HA [auth dB], M [auth bB], W [auth cB]	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 chlorophyll binding tetrapyrrole binding iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding electron transfer activity	photosynthesis metabolic process cellular process	membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane cyanelle thylakoid organelle cyanelle thylakoid membrane cytoplasm photosynthetic membrane organelle membrane chloroplast thylakoid membrane organelle outer membrane bounding membrane of organelle chloroplast chloroplast thylakoid outer membrane protein-containing complex photosystem photosystem I membrane protein complex
C [auth aC], IA [auth dC], N [auth bC], X [auth cC]	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	membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane cyanelle thylakoid organelle cyanelle thylakoid membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
D [auth aD], JA [auth dD], O [auth bD], Y [auth cD]	Photosystem I reaction center subunit II, cyanelle	-	photosynthesis metabolic process cellular process	membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane cyanelle thylakoid organelle cyanelle thylakoid membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
E [auth aE], KA [auth dE], P [auth bE], Z [auth cE]	Photosystem I reaction center subunit IV	-	photosynthesis metabolic process cellular process	membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane cyanelle thylakoid organelle cyanelle thylakoid membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
AA [auth cF], F [auth aF], LA [auth dF], Q [auth bF]	Photosystem I reaction center subunit III	-	photosynthesis metabolic process cellular process	membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane cyanelle thylakoid organelle cyanelle thylakoid membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
BA [auth cI], G [auth aI], MA [auth dI], R [auth bI]	Photosystem I reaction center subunit VIII	-	photosynthesis metabolic process cellular process	membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane cyanelle thylakoid organelle cyanelle thylakoid membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
CA [auth cJ], H [auth aJ], NA [auth dJ], S [auth bJ]	Photosystem I reaction center subunit IX	-	photosynthesis metabolic process cellular process	membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane cyanelle thylakoid organelle cyanelle thylakoid membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
DA [auth cK], I [auth aK]	Photosystem I reaction center subunit PsaK 1	-	-	-
EA [auth cL], J [auth aL], OA [auth dL], T [auth bL]	Photosystem I reaction center subunit XI	-	-	-
FA [auth cM], K [auth aM], PA [auth dM], U [auth bM]	Photosystem I reaction center subunit XII	-	photosynthesis metabolic process cellular process	membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid cyanelle plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure membraneless organelle plastid envelope thylakoid membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane cyanelle thylakoid organelle cyanelle thylakoid 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 aA], GA [auth dA], L [auth bA], V [auth cA]	IPR006243	Photosystem I PsaA	Family
A [auth aA], GA [auth dA], L [auth bA], V [auth cA]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
A [auth aA], GA [auth dA], L [auth bA], V [auth cA]	IPR001280	Photosystem I PsaA/PsaB	Family
A [auth aA], GA [auth dA], L [auth bA], V [auth cA]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
B [auth aB], HA [auth dB], M [auth bB], W [auth cB]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
B [auth aB], HA [auth dB], M [auth bB], W [auth cB]	IPR001280	Photosystem I PsaA/PsaB	Family
B [auth aB], HA [auth dB], M [auth bB], W [auth cB]	IPR006244	Photosystem I PsaB	Family
B [auth aB], HA [auth dB], M [auth bB], W [auth cB]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
C [auth aC], IA [auth dC], N [auth bC], X [auth cC]	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
C [auth aC], IA [auth dC], N [auth bC], X [auth cC]	IPR050157	Photosystem I iron-sulfur center	Family
C [auth aC], IA [auth dC], N [auth bC], X [auth cC]	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
C [auth aC], IA [auth dC], N [auth bC], X [auth cC]	IPR017491	Photosystem I protein PsaC	Family
D [auth aD], JA [auth dD], O [auth bD], Y [auth cD]	IPR003685	Photosystem I PsaD	Family
D [auth aD], JA [auth dD], O [auth bD], Y [auth cD]	IPR036579	Photosystem I, reaction centre subunit PsaD superfamily	Homologous Superfamily
E [auth aE], KA [auth dE], P [auth bE], Z [auth cE]	IPR008990	Electron transport accessory-like domain superfamily	Homologous Superfamily
E [auth aE], KA [auth dE], P [auth bE], Z [auth cE]	IPR003375	Photosystem I PsaE, reaction centre subunit IV	Family
AA [auth cF], F [auth aF], LA [auth dF], Q [auth bF]	IPR036577	Photosystem I PsaF, reaction centre subunit III superfamily	Homologous Superfamily
AA [auth cF], F [auth aF], LA [auth dF], Q [auth bF]	IPR003666	Photosystem I PsaF, reaction centre subunit III	Family
BA [auth cI], G [auth aI], MA [auth dI], R [auth bI]	IPR036357	Photosystem I reaction centre subunit VIII superfamily	Homologous Superfamily
BA [auth cI], G [auth aI], MA [auth dI], R [auth bI]	IPR001302	Photosystem I reaction centre subunit VIII	Family
CA [auth cJ], H [auth aJ], NA [auth dJ], S [auth bJ]	IPR002615	Photosystem I PsaJ, reaction centre subunit IX	Family
CA [auth cJ], H [auth aJ], NA [auth dJ], S [auth bJ]	IPR036062	Photosystem I PsaJ, reaction centre subunit IX superfamily	Homologous Superfamily
FA [auth cM], K [auth aM], PA [auth dM], U [auth bM]	IPR010010	Photosystem I PsaM, reaction centre	Family
FA [auth cM], K [auth aM], PA [auth dM], U [auth bM]	IPR037279	Photosystem I PsaM, reaction centre superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth aA], AA [auth cF], B [auth aB], BA [auth cI], C [auth aC] A [auth aA], AA [auth cF], B [auth aB], BA [auth cI], C [auth aC], CA [auth cJ], D [auth aD], E [auth aE], F [auth aF], FA [auth cM], G [auth aI], GA [auth dA], H [auth aJ], HA [auth dB], IA [auth dC], JA [auth dD], K [auth aM], KA [auth dE], L [auth bA], LA [auth dF], M [auth bB], MA [auth dI], N [auth bC], NA [auth dJ], O [auth bD], P [auth bE], PA [auth dM], Q [auth bF], R [auth bI], S [auth bJ], U [auth bM], V [auth cA], W [auth cB], X [auth cC], Y [auth cD], Z [auth cE]	OPM	Transmembrane	Alpha-helical polytopic	Photosystems	Photosystem I