Annotations: 6UZV

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
L [auth a]	d6uzva_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
M [auth 1]	d6uzv1_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
P [auth b]	d6uzvb_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
Q [auth 2]	d6uzv2_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
N [auth c]	d6uzvc_	Alpha and beta proteins (a+b)	Ferredoxin-like	4Fe-4S ferredoxins	7-Fe ferredoxin	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
O [auth 3]	d6uzv3_	Alpha and beta proteins (a+b)	Ferredoxin-like	4Fe-4S ferredoxins	7-Fe ferredoxin	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
R [auth d]	d6uzvd_	Alpha and beta proteins (a+b)	Photosystem I subunit PsaD	Photosystem I subunit PsaD	Photosystem I subunit PsaD	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
S [auth 4]	d6uzv4_	Alpha and beta proteins (a+b)	Photosystem I subunit PsaD	Photosystem I subunit PsaD	Photosystem I subunit PsaD	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
T [auth e]	d6uzve_	All beta proteins	SH3-like barrel	Electron transport accessory proteins	Photosystem I accessory protein E (PsaE)	Photosystem I accessory protein E (PsaE)	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
U [auth 5]	d6uzv5_	All beta proteins	SH3-like barrel	Electron transport accessory proteins	Photosystem I accessory protein E (PsaE)	Photosystem I accessory protein E (PsaE)	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
F	d6uzvf_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit III of photosystem I reaction centre, PsaF	Subunit III of photosystem I reaction centre, PsaF	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
W [auth 6]	d6uzv6_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit III of photosystem I reaction centre, PsaF	Subunit III of photosystem I reaction centre, PsaF	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
X [auth i]	d6uzvi_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit VIII of photosystem I reaction centre, PsaI	Subunit VIII of photosystem I reaction centre, PsaI	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
Y [auth h]	d6uzvh_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit VIII of photosystem I reaction centre, PsaI	Subunit VIII of photosystem I reaction centre, PsaI	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
AA [auth 7]	d6uzv7_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit IX of photosystem I reaction centre, PsaJ	Subunit IX of photosystem I reaction centre, PsaJ	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
Z [auth j]	d6uzvj_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit IX of photosystem I reaction centre, PsaJ	Subunit IX of photosystem I reaction centre, PsaJ	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
DA [auth l]	d6uzvl_	Membrane and cell surface proteins and peptides	Photosystem I reaction center subunit XI, PsaL	Photosystem I reaction center subunit XI, PsaL	Photosystem I reaction center subunit XI, PsaL	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
EA [auth 0]	d6uzv0_	Membrane and cell surface proteins and peptides	Photosystem I reaction center subunit XI, PsaL	Photosystem I reaction center subunit XI, PsaL	Photosystem I reaction center subunit XI, PsaL	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
CA [auth 8]	d6uzv8_	Membrane and cell surface proteins and peptides	Photosystem I reaction center subunit X, PsaK	Photosystem I reaction center subunit X, PsaK	automated matches	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)
K	d6uzvk_	Membrane and cell surface proteins and peptides	Photosystem I reaction center subunit X, PsaK	Photosystem I reaction center subunit X, PsaK	automated matches	automated matches	(Synechocystis sp. PCC 6803 substr. Kazusa ) [TaxId: 1111708 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074454	3000850	SCOP2B (2022-06-29)
L [auth a]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074454	3000850	SCOP2B (2022-06-29)
M [auth 1]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074454	3000850	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074462	3000850	SCOP2B (2022-06-29)
P [auth b]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074462	3000850	SCOP2B (2022-06-29)
Q [auth 2]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8074462	3000850	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Photosystem I subunit PsaD	8074480	3000951	SCOP2B (2022-06-29)
R [auth d]	SCOP2B Superfamily	Photosystem I subunit PsaD	8074480	3000951	SCOP2B (2022-06-29)
S [auth 4]	SCOP2B Superfamily	Photosystem I subunit PsaD	8074480	3000951	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Electron transport accessory proteins	8044474	3000325	SCOP2B (2022-06-29)
T [auth e]	SCOP2B Superfamily	Electron transport accessory proteins	8044474	3000325	SCOP2B (2022-06-29)
U [auth 5]	SCOP2B Superfamily	Electron transport accessory proteins	8044474	3000325	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8074438	3000813	SCOP2B (2022-06-29)
V [auth f]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8074438	3000813	SCOP2B (2022-06-29)
W [auth 6]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8074438	3000813	SCOP2B (2022-06-29)
G [auth I]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8074504	3000819	SCOP2B (2022-06-29)
X [auth i]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8074504	3000819	SCOP2B (2022-06-29)
Y [auth h]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8074504	3000819	SCOP2B (2022-06-29)
AA [auth 7]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8074512	3000824	SCOP2B (2022-06-29)
H [auth J]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8074512	3000824	SCOP2B (2022-06-29)
Z [auth j]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8074512	3000824	SCOP2B (2022-06-29)
DA [auth l]	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8087170	3000870	SCOP2B (2022-06-29)
EA [auth 0]	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8087170	3000870	SCOP2B (2022-06-29)
I [auth L]	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8087170	3000870	SCOP2B (2022-06-29)
FA [auth m]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8074450	3000829	SCOP2B (2022-06-29)
GA [auth 9]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8074450	3000829	SCOP2B (2022-06-29)
J [auth M]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8074450	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	PsaA_PsaB_C	e6uzvA2	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	e6uzvA1	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 a]	PsaA_PsaB_C	e6uzva2	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 a]	PsaA_PsaB_N	e6uzva1	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 1]	PsaA_PsaB_C	e6uzv12	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 1]	PsaA_PsaB_N	e6uzv11	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	e6uzvB1	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	e6uzvB2	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)
P [auth b]	PsaA_PsaB_C	e6uzvb2	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)
P [auth b]	PsaA_PsaB_N	e6uzvb1	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)
Q [auth 2]	PsaA_PsaB_C	e6uzv21	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)
Q [auth 2]	PsaA_PsaB_N	e6uzv22	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	Fer4_21_1	e6uzvC1	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 c]	Fer4_21_1	e6uzvc1	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)
O [auth 3]	Fer4_21_1	e6uzv31	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	e6uzvD1	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)
R [auth d]	PsaD	e6uzvd1	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)
S [auth 4]	PsaD	e6uzv41	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	PSI_PsaE	e6uzvE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
T [auth e]	PSI_PsaE	e6uzve1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
U [auth 5]	PSI_PsaE	e6uzv51	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
F	PSI_PsaF	e6uzvF1	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)
V [auth f]	PSI_PsaF	e6uzvf1	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)
W [auth 6]	PSI_PsaF	e6uzv61	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)
G [auth I]	PSI_8	e6uzvI1	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)
X [auth i]	PSI_8	e6uzvi1	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 h]	PSI_8	e6uzvh1	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)
AA [auth 7]	PSI_PsaJ	e6uzv71	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 J]	PSI_PsaJ	e6uzvJ1	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 j]	PSI_PsaJ	e6uzvj1	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 l]	PsaL	e6uzvl1	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)
EA [auth 0]	PsaL	e6uzv01	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)
I [auth L]	PsaL	e6uzvL1	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 m]	PsaM	e6uzvm1	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)
GA [auth 9]	PsaM	e6uzv91	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)
J [auth M]	PsaM	e6uzvM1	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)
BA [auth k]	PSI_PSAK	e6uzvk1	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)
CA [auth 8]	PSI_PSAK	e6uzv81	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)
K	PSI_PSAK	e6uzvK1	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)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
DA [auth l]	1.20.1240.10	Mainly Alpha	Up-down Bundle	Photosystem 1 Reaction Centre Subunit Xi	Chain: L	CATH (utative)
EA [auth 0]	1.20.1240.10	Mainly Alpha	Up-down Bundle	Photosystem 1 Reaction Centre Subunit Xi	Chain: L	CATH (utative)
I [auth L]	1.20.1240.10	Mainly Alpha	Up-down Bundle	Photosystem 1 Reaction Centre Subunit Xi	Chain: L	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, L [auth a], M [auth 1]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
B, P [auth b], Q [auth 2]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
C, N [auth c], O [auth 3]	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, R [auth d], S [auth 4]	PF02531	PsaD (PsaD)	PsaD	-	Family
E, T [auth e], U [auth 5]	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
F, V [auth f], W [auth 6]	PF02507	Photosystem I reaction centre subunit III (PSI_PsaF)	Photosystem I reaction centre subunit III	-	Family
G [auth I], X [auth i], Y [auth h]	PF00796	Photosystem I reaction centre subunit VIII (PSI_8)	Photosystem I reaction centre subunit VIII	-	Family
AA [auth 7], H [auth J], Z [auth j]	PF01701	Photosystem I reaction centre subunit IX / PsaJ (PSI_PsaJ)	Photosystem I reaction centre subunit IX / PsaJ	-	Family
DA [auth l], EA [auth 0], I [auth L]	PF02605	Photosystem I reaction centre subunit XI (PsaL)	Photosystem I reaction centre subunit XI	-	Family
FA [auth m], GA [auth 9], J [auth M]	PF07465	Photosystem I protein M (PsaM) (PsaM)	Photosystem I protein M (PsaM)	-	Family
BA [auth k], CA [auth 8], K	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
A, L [auth a], M [auth 1]	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 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	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
B, P [auth b], Q [auth 2]	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	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
C, N [auth c], O [auth 3]	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	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
D, R [auth d], S [auth 4]	Photosystem I reaction center subunit II	-	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 cell periphery plasma membrane
E, T [auth e], U [auth 5]	Photosystem I reaction center subunit IV	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
F, V [auth f], W [auth 6]	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 cell periphery plasma membrane
G [auth I], X [auth i], Y [auth h]	Photosystem I reaction center subunit VIII	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
AA [auth 7], H [auth J], Z [auth j]	Photosystem I reaction center subunit IX	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
DA [auth l], EA [auth 0], I [auth L]	Photosystem I reaction center subunit XI	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
FA [auth m], GA [auth 9], J [auth M]	Photosystem I reaction center subunit XII	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
BA [auth k], CA [auth 8], K	Photosystem I reaction center subunit PsaK 2	-	photosynthesis metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, L [auth a], M [auth 1]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
A, L [auth a], M [auth 1]	IPR001280	Photosystem I PsaA/PsaB	Family
A, L [auth a], M [auth 1]	IPR006243	Photosystem I PsaA	Family
A, L [auth a], M [auth 1]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
B, P [auth b], Q [auth 2]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
B, P [auth b], Q [auth 2]	IPR001280	Photosystem I PsaA/PsaB	Family
B, P [auth b], Q [auth 2]	IPR006244	Photosystem I PsaB	Family
B, P [auth b], Q [auth 2]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
C, N [auth c], O [auth 3]	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
C, N [auth c], O [auth 3]	IPR050157	Photosystem I iron-sulfur center	Family
C, N [auth c], O [auth 3]	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
C, N [auth c], O [auth 3]	IPR017491	Photosystem I protein PsaC	Family
D, R [auth d], S [auth 4]	IPR003685	Photosystem I PsaD	Family
D, R [auth d], S [auth 4]	IPR036579	Photosystem I, reaction centre subunit PsaD superfamily	Homologous Superfamily
E, T [auth e], U [auth 5]	IPR008990	Electron transport accessory-like domain superfamily	Homologous Superfamily
E, T [auth e], U [auth 5]	IPR003375	Photosystem I PsaE, reaction centre subunit IV	Family
F, V [auth f], W [auth 6]	IPR036577	Photosystem I PsaF, reaction centre subunit III superfamily	Homologous Superfamily
F, V [auth f], W [auth 6]	IPR003666	Photosystem I PsaF, reaction centre subunit III	Family
G [auth I], X [auth i], Y [auth h]	IPR036357	Photosystem I reaction centre subunit VIII superfamily	Homologous Superfamily
G [auth I], X [auth i], Y [auth h]	IPR001302	Photosystem I reaction centre subunit VIII	Family
AA [auth 7], H [auth J], Z [auth j]	IPR002615	Photosystem I PsaJ, reaction centre subunit IX	Family
AA [auth 7], H [auth J], Z [auth j]	IPR036062	Photosystem I PsaJ, reaction centre subunit IX superfamily	Homologous Superfamily
DA [auth l], EA [auth 0], I [auth L]	IPR003757	Photosystem I PsaL, reaction centre subunit XI	Domain
DA [auth l], EA [auth 0], I [auth L]	IPR022980	Photosystem I, reaction centre subunit XI	Family
DA [auth l], EA [auth 0], I [auth L]	IPR036592	Photosystem I PsaL, reaction centre subunit XI superfamily	Homologous Superfamily
FA [auth m], GA [auth 9], J [auth M]	IPR010010	Photosystem I PsaM, reaction centre	Family
FA [auth m], GA [auth 9], J [auth M]	IPR037279	Photosystem I PsaM, reaction centre superfamily	Homologous Superfamily
BA [auth k], CA [auth 8], K	IPR037101	Photosystem I reaction centre subunit PsaK	Homologous Superfamily
BA [auth k], CA [auth 8], K	IPR000549	Photosystem I reaction center subunit V/PsaK	Family
BA [auth k], CA [auth 8], K	IPR035982	Photosystem I reaction centre subunit PsaK superfamily	Homologous Superfamily
BA [auth k], CA [auth 8], K	IPR017492	Photosystem I reaction center subunit PsaK	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, AA [auth 7], B, BA [auth k], C A, AA [auth 7], B, BA [auth k], C, CA [auth 8], DA [auth l], E, EA [auth 0], F, FA [auth m], G [auth I], GA [auth 9], H [auth J], I [auth L], J [auth M], K, L [auth a], M [auth 1], N [auth c], O [auth 3], P [auth b], Q [auth 2], T [auth e], U [auth 5], V [auth f], W [auth 6], X [auth i], Y [auth h], Z [auth j]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, AA [auth 7], B, BA [auth k], C A, AA [auth 7], B, BA [auth k], C, CA [auth 8], DA [auth l], E, EA [auth 0], F, FA [auth m], G [auth I], GA [auth 9], H [auth J], I [auth L], J [auth M], K, L [auth a], M [auth 1], N [auth c], O [auth 3], P [auth b], Q [auth 2], T [auth e], U [auth 5], V [auth f], W [auth 6], X [auth i], Y [auth h], Z [auth j]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Photosystems	Photosystem I chimera