6K33

Structure of PSI-isiA supercomplex from Thermosynechococcus vulcanus

External Resource: Annotation

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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth aB]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8093600	3000850	SCOP2B (2022-06-29)
LA [auth cB]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8093600	3000850	SCOP2B (2022-06-29)
T [auth bB]	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8093599	4002118	SCOP2 (2022-06-29)
T [auth bB]	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8093600	3000850	SCOP2 (2022-06-29)
A [auth aA]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8094285	3000850	SCOP2B (2022-06-29)
KA [auth cA]	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8094284	4002118	SCOP2 (2022-06-29)
KA [auth cA]	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8094285	3000850	SCOP2 (2022-06-29)
S [auth bA]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8094285	3000850	SCOP2B (2022-06-29)
C [auth aC]	SCOP2 Family	7-Fe ferredoxin	8093601	4001227	SCOP2 (2022-06-29)
C [auth aC]	SCOP2 Superfamily	4Fe-4S ferredoxins	8093602	3000020	SCOP2 (2022-06-29)
MA [auth cC]	SCOP2B Superfamily	4Fe-4S ferredoxins	8093602	3000020	SCOP2B (2022-06-29)
U [auth bC]	SCOP2B Superfamily	4Fe-4S ferredoxins	8093602	3000020	SCOP2B (2022-06-29)
D [auth aD]	SCOP2 Family	Photosystem I subunit PsaD	8093603	4003498	SCOP2 (2022-06-29)
D [auth aD]	SCOP2 Superfamily	Photosystem I subunit PsaD	8093604	3000951	SCOP2 (2022-06-29)
NA [auth cD]	SCOP2B Superfamily	Photosystem I subunit PsaD	8093604	3000951	SCOP2B (2022-06-29)
V [auth bD]	SCOP2B Superfamily	Photosystem I subunit PsaD	8093604	3000951	SCOP2B (2022-06-29)
I [auth aK]	SCOP2 Family	Photosystem I reaction center subunit X PsaK	8094310	4002128	SCOP2 (2022-06-29)
I [auth aK]	SCOP2 Superfamily	Photosystem I reaction center subunit X PsaK	8094311	3000859	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)
B [auth aB]	PsaA_PsaB_C	e6k33aB1	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	e6k33aB2	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)
LA [auth cB]	PsaA_PsaB_C	e6k33cB2	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)
LA [auth cB]	PsaA_PsaB_N	e6k33cB1	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)
T [auth bB]	PsaA_PsaB_C	e6k33bB1	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)
T [auth bB]	PsaA_PsaB_N	e6k33bB2	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)
E [auth aE]	PSI_PsaE	e6k33aE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
OA [auth cE]	PSI_PsaE	e6k33cE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
W [auth bE]	PSI_PsaE	e6k33bE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
G [auth aI]	PSI_8	e6k33aI1	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)
QA [auth cI]	PSI_8	e6k33cI1	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)
Y [auth bI]	PSI_8	e6k33bI1	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)
H [auth aJ]	PSI_PsaJ	e6k33aJ1	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)
RA [auth cJ]	PSI_PsaJ	e6k33cJ1	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)
Z [auth bJ]	PSI_PsaJ	e6k33bJ1	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)
CA [auth bM]	PsaM	e6k33bM1	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	e6k33aM1	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)
UA [auth cM]	PsaM	e6k33cM1	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)
AB [auth c5]	PSII_1st	e6k33c51	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: PSII_1st	ECOD (1.6)
BB [auth c6]	PSII_1st	e6k33c61	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: PSII_1st	ECOD (1.6)
EA [auth b1]	PSII_1st	e6k33b11	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: PSII_1st	ECOD (1.6)
FA [auth b2]	PSII_1st	e6k33b21	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: PSII_1st	ECOD (1.6)
GA [auth b3]	PSII_1st	e6k33b31	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: PSII_1st	ECOD (1.6)
HA [auth b4]	PSII_1st	e6k33b41	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: PSII_1st	ECOD (1.6)
JA [auth b6]	PSII_1st	e6k33b61	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: PSII_1st	ECOD (1.6)
M [auth a1]	PSII_1st	e6k33a11	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: PSII_1st	ECOD (1.6)
N [auth a2]	PSII_1st	e6k33a21	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: PSII_1st	ECOD (1.6)
O [auth a3]	PSII_1st	e6k33a31	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: PSII_1st	ECOD (1.6)
P [auth a4]	PSII_1st	e6k33a41	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: PSII_1st	ECOD (1.6)
Q [auth a5]	PSII_1st	e6k33a51	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: PSII_1st	ECOD (1.6)
R [auth a6]	PSII_1st	e6k33a61	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: PSII_1st	ECOD (1.6)
WA [auth c1]	PSII_1st	e6k33c11	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: PSII_1st	ECOD (1.6)
XA [auth c2]	PSII_1st	e6k33c21	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: PSII_1st	ECOD (1.6)
YA [auth c3]	PSII_1st	e6k33c31	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: PSII_1st	ECOD (1.6)
ZA [auth c4]	PSII_1st	e6k33c41	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: PSII_1st	ECOD (1.6)
IA [auth b5]	PSII_1st	e6k33b51	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: PSII_1st	ECOD (1.6)
A [auth aA]	PsaA_PsaB_C	e6k33aA2	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	e6k33aA1	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)
KA [auth cA]	PsaA_PsaB_C	e6k33cA1	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)
KA [auth cA]	PsaA_PsaB_N	e6k33cA2	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)
S [auth bA]	PsaA_PsaB_C	e6k33bA2	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)
S [auth bA]	PsaA_PsaB_N	e6k33bA1	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)
BA [auth bL]	PsaL	e6k33bL1	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	e6k33aL1	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)
TA [auth cL]	PsaL	e6k33cL1	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)
DA [auth bX]	PsaX	e6k33bX1	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)
L [auth aX]	PsaX	e6k33aX1	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)
VA [auth cX]	PsaX	e6k33cX1	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)
C [auth aC]	Fer4_21_1	e6k33aC1	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)
MA [auth cC]	Fer4_21_1	e6k33cC1	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)
U [auth bC]	Fer4_21_1	e6k33bC1	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	e6k33aD1	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)
NA [auth cD]	PsaD	e6k33cD1	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)
V [auth bD]	PsaD	e6k33bD1	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)
F [auth aF]	PSI_PsaF	e6k33aF1	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)
PA [auth cF]	PSI_PsaF	e6k33cF1	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)
X [auth bF]	PSI_PsaF	e6k33bF1	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)
AA [auth bK]	PSI_PSAK	e6k33bK1	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	e6k33aK1	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)
SA [auth cK]	PSI_PSAK	e6k33cK1	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth aB], LA [auth cB], T [auth bB]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
A [auth aA], KA [auth cA], S [auth bA]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
C [auth aC], MA [auth cC], U [auth bC]	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
D [auth aD], NA [auth cD], V [auth bD]	PF02531	PsaD (PsaD)	PsaD	-	Family
AA [auth bK], I [auth aK], SA [auth cK]	PF01241	Photosystem I psaG / psaK (PSI_PSAK)	Photosystem I psaG / psaK	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth aB], LA [auth cB], T [auth bB]	Photosystem I P700 chlorophyll a apoprotein A2	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding 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
E [auth aE], OA [auth cE], W [auth bE]	Photosystem I reaction center subunit IV	-	-	-
G [auth aI], QA [auth cI], Y [auth bI]	Photosystem I reaction center subunit VIII	-	-	-
H [auth aJ], RA [auth cJ], Z [auth bJ]	Photosystem I reaction center subunit IX	-	-	-
CA [auth bM], K [auth aM], UA [auth cM]	Photosystem I reaction center subunit XII	-	-	-
AB [auth c5], BB [auth c6], EA [auth b1], FA [auth b2], GA [auth b3], AB [auth c5], BB [auth c6], EA [auth b1], FA [auth b2], GA [auth b3], HA [auth b4], IA [auth b5], JA [auth b6], M [auth a1], N [auth a2], O [auth a3], P [auth a4], Q [auth a5], R [auth a6], WA [auth c1], XA [auth c2], YA [auth c3], ZA [auth c4]	Iron stress in-duced protein A	-	-	-
A [auth aA], KA [auth cA], S [auth bA]	Photosystem I P700 chlorophyll a apoprotein A1	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding 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
BA [auth bL], J [auth aL], TA [auth cL]	Photosystem I reaction center subunit XI	-	-	-
DA [auth bX], L [auth aX], VA [auth cX]	Photosystem I reaction center subunit psaX	-	-	-
C [auth aC], MA [auth cC], U [auth bC]	Photosystem I iron-sulfur center	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
D [auth aD], NA [auth cD], V [auth bD]	Photosystem I reaction center subunit II	-	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
F [auth aF], PA [auth cF], X [auth bF]	Photosystem I reaction center subunit III	-	-	-
AA [auth bK], I [auth aK], SA [auth cK]	Photosystem I reaction center subunit PsaK	-	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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth aB], LA [auth cB], T [auth bB]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
B [auth aB], LA [auth cB], T [auth bB]	IPR001280	Photosystem I PsaA/PsaB	Family
B [auth aB], LA [auth cB], T [auth bB]	IPR006244	Photosystem I PsaB	Family
B [auth aB], LA [auth cB], T [auth bB]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
A [auth aA], KA [auth cA], S [auth bA]	IPR006243	Photosystem I PsaA	Family
A [auth aA], KA [auth cA], S [auth bA]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
A [auth aA], KA [auth cA], S [auth bA]	IPR001280	Photosystem I PsaA/PsaB	Family
A [auth aA], KA [auth cA], S [auth bA]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
C [auth aC], MA [auth cC], U [auth bC]	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
C [auth aC], MA [auth cC], U [auth bC]	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
C [auth aC], MA [auth cC], U [auth bC]	IPR017491	Photosystem I protein PsaC	Family
D [auth aD], NA [auth cD], V [auth bD]	IPR003685	Photosystem I PsaD	Family
D [auth aD], NA [auth cD], V [auth bD]	IPR036579	Photosystem I, reaction centre subunit PsaD superfamily	Homologous Superfamily
AA [auth bK], I [auth aK], SA [auth cK]	IPR037101	Photosystem I reaction centre subunit PsaK	Homologous Superfamily
AA [auth bK], I [auth aK], SA [auth cK]	IPR000549	Photosystem I reaction center subunit V/PsaK	Family
AA [auth bK], I [auth aK], SA [auth cK]	IPR035982	Photosystem I reaction centre subunit PsaK superfamily	Homologous Superfamily
AA [auth bK], I [auth aK], SA [auth cK]	IPR017492	Photosystem I reaction center subunit PsaK	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth aA], AA [auth bK], B [auth aB], C [auth aC], I [auth aK] A [auth aA], AA [auth bK], B [auth aB], C [auth aC], I [auth aK], KA [auth cA], LA [auth cB], MA [auth cC], S [auth bA], SA [auth cK], T [auth bB], U [auth bC]	OPM	Transmembrane	Alpha-helical polytopic	Photosystems	Photosystem I

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth aA], AA [auth bK], B [auth aB], C [auth aC], I [auth aK] A [auth aA], AA [auth bK], B [auth aB], C [auth aC], I [auth aK], KA [auth cA], LA [auth cB], MA [auth cC], S [auth bA], SA [auth cK], T [auth bB], U [auth bC]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Photosystem+Light-Harvesting Complex Supercomplex	Photosystem I-IsiA supercomplex