6PGK

Membrane Protein Megahertz Crystallography at the European XFEL, Photosystem I XFEL at 2.9 A

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: mpstruc

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d6pgka_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Apoprotein a1, PsaA	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
G	d6pgkg_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Apoprotein a1, PsaA	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
Y	d6pgky_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Apoprotein a1, PsaA	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
B	d6pgkb_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
H	d6pgkh_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
Z	d6pgkz_	Membrane and cell surface proteins and peptides	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	Photosystem I subunits PsaA/PsaB	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
C	d6pgkc_	Alpha and beta proteins (a+b)	Ferredoxin-like	4Fe-4S ferredoxins	7-Fe ferredoxin	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
N	d6pgkn_	Alpha and beta proteins (a+b)	Ferredoxin-like	4Fe-4S ferredoxins	7-Fe ferredoxin	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
E	d6pgke_	All beta proteins	SH3-like barrel	Electron transport accessory proteins	Photosystem I accessory protein E (PsaE)	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
P	d6pgkp_	All beta proteins	SH3-like barrel	Electron transport accessory proteins	Photosystem I accessory protein E (PsaE)	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
F	d6pgkf_	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	Subunit III of photosystem I reaction centre, PsaF	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
Q	d6pgkq_	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	Subunit III of photosystem I reaction centre, PsaF	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
I	d6pgki_	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	Subunit VIII of photosystem I reaction centre, PsaI	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
R	d6pgkr_	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	Subunit VIII of photosystem I reaction centre, PsaI	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
J	d6pgkj_	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	Subunit IX of photosystem I reaction centre, PsaJ	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
S	d6pgks_	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	Subunit IX of photosystem I reaction centre, PsaJ	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
L	d6pgkl_	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	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
U	d6pgku_	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	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
M	d6pgkm_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit XII of photosystem I reaction centre, PsaM	Subunit XII of photosystem I reaction centre, PsaM	Subunit XII of photosystem I reaction centre, PsaM	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
V	d6pgkv_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit XII of photosystem I reaction centre, PsaM	Subunit XII of photosystem I reaction centre, PsaM	Subunit XII of photosystem I reaction centre, PsaM	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
W	d6pgkw_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit PsaX of photosystem I reaction centre	Subunit PsaX of photosystem I reaction centre	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
X	d6pgkx_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Subunit PsaX of photosystem I reaction centre	Subunit PsaX of photosystem I reaction centre	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
D	d6pgkd_	Alpha and beta proteins (a+b)	Photosystem I subunit PsaD	Photosystem I subunit PsaD	Photosystem I subunit PsaD	Photosystem I subunit PsaD	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
O	d6pgko_	Alpha and beta proteins (a+b)	Photosystem I subunit PsaD	Photosystem I subunit PsaD	Photosystem I subunit PsaD	Photosystem I subunit PsaD	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	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	8034272	3000850	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8034272	3000850	SCOP2B (2022-06-29)
Y	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8034272	3000850	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8034274	3000850	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8034274	3000850	SCOP2B (2022-06-29)
Z	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8034274	3000850	SCOP2B (2022-06-29)
AA [auth a]	SCOP2B Superfamily	4Fe-4S ferredoxins	8034277	3000020	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	4Fe-4S ferredoxins	8034277	3000020	SCOP2B (2022-06-29)
N	SCOP2B Superfamily	4Fe-4S ferredoxins	8034277	3000020	SCOP2B (2022-06-29)
CA [auth c]	SCOP2B Superfamily	Electron transport accessory proteins	8034282	3000325	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Electron transport accessory proteins	8034282	3000325	SCOP2B (2022-06-29)
P	SCOP2B Superfamily	Electron transport accessory proteins	8034282	3000325	SCOP2B (2022-06-29)
DA [auth d]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8034284	3000813	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8034284	3000813	SCOP2B (2022-06-29)
Q	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8034284	3000813	SCOP2B (2022-06-29)
EA [auth e]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8034286	3000819	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8034286	3000819	SCOP2B (2022-06-29)
R	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre, PsaI	8034286	3000819	SCOP2B (2022-06-29)
FA [auth f]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8034287	3000824	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8034287	3000824	SCOP2B (2022-06-29)
S	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre, PsaJ	8034287	3000824	SCOP2B (2022-06-29)
GA [auth g]	SCOP2B Superfamily	Photosystem I reaction center subunit X, PsaK	8034288	3000859	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	Photosystem I reaction center subunit X, PsaK	8034288	3000859	SCOP2B (2022-06-29)
T	SCOP2B Superfamily	Photosystem I reaction center subunit X, PsaK	8034288	3000859	SCOP2B (2022-06-29)
HA [auth h]	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8034291	3000870	SCOP2B (2022-06-29)
L	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8034291	3000870	SCOP2B (2022-06-29)
U	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8034291	3000870	SCOP2B (2022-06-29)
IA [auth i]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8034290	3000829	SCOP2B (2022-06-29)
M	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8034290	3000829	SCOP2B (2022-06-29)
V	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8034290	3000829	SCOP2B (2022-06-29)
JA [auth j]	SCOP2B Superfamily	Subunit PsaX of photosystem I reaction centre	8034292	3000838	SCOP2B (2022-06-29)
W	SCOP2B Superfamily	Subunit PsaX of photosystem I reaction centre	8034292	3000838	SCOP2B (2022-06-29)
X	SCOP2B Superfamily	Subunit PsaX of photosystem I reaction centre	8034292	3000838	SCOP2B (2022-06-29)
BA [auth b]	SCOP2B Superfamily	Photosystem I subunit PsaD	8034279	3000951	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Photosystem I subunit PsaD	8034279	3000951	SCOP2B (2022-06-29)
O	SCOP2B Superfamily	Photosystem I subunit PsaD	8034279	3000951	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	e6pgkA2	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	e6pgkA1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
G	PsaA_PsaB_C	e6pgkG1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PsaA_PsaB_C	ECOD (1.6)
G	PsaA_PsaB_N	e6pgkG2	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
Y	PsaA_PsaB_C	e6pgkY1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PsaA_PsaB_C	ECOD (1.6)
Y	PsaA_PsaB_N	e6pgkY2	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	e6pgkB1	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	e6pgkB2	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
H	PsaA_PsaB_C	e6pgkH2	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PsaA_PsaB_C	ECOD (1.6)
H	PsaA_PsaB_N	e6pgkH1	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
Z	PsaA_PsaB_C	e6pgkZ1	A: alpha bundles	X: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	H: Bacterial photosystem II reaction centre L and M subunits-like (From Topology)	T: Bacterial photosystem II reaction centre L and M subunits-like	F: PsaA_PsaB_C	ECOD (1.6)
Z	PsaA_PsaB_N	e6pgkZ2	A: alpha bundles	X: Photosystem II antenna protein-like (From Topology)	H: Photosystem II antenna protein-like (From Topology)	T: Photosystem II antenna protein-like	F: PsaA_PsaB_N	ECOD (1.6)
AA [auth a]	Fer4_21_1	e6pgka1	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: Fer4_21_1	ECOD (1.6)
C	Fer4_21_1	e6pgkC1	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: Fer4_21_1	ECOD (1.6)
N	Fer4_21_1	e6pgkN1	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)
CA [auth c]	PSI_PsaE	e6pgkc1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
E	PSI_PsaE	e6pgkE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
P	PSI_PsaE	e6pgkP1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PSI_PsaE	ECOD (1.6)
DA [auth d]	PSI_PsaF	e6pgkd1	A: extended segments	X: Subunit III of photosystem I reaction centre, PsaF (From Topology)	H: Subunit III of photosystem I reaction centre, PsaF (From Topology)	T: Subunit III of photosystem I reaction centre, PsaF	F: PSI_PsaF	ECOD (1.6)
F	PSI_PsaF	e6pgkF1	A: extended segments	X: Subunit III of photosystem I reaction centre, PsaF (From Topology)	H: Subunit III of photosystem I reaction centre, PsaF (From Topology)	T: Subunit III of photosystem I reaction centre, PsaF	F: PSI_PsaF	ECOD (1.6)
Q	PSI_PsaF	e6pgkQ1	A: extended segments	X: Subunit III of photosystem I reaction centre, PsaF (From Topology)	H: Subunit III of photosystem I reaction centre, PsaF (From Topology)	T: Subunit III of photosystem I reaction centre, PsaF	F: PSI_PsaF	ECOD (1.6)
EA [auth e]	PSI_8	e6pgke1	A: extended segments	X: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	H: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	T: Subunit VIII of photosystem I reaction centre, PsaI	F: PSI_8	ECOD (1.6)
I	PSI_8	e6pgkI1	A: extended segments	X: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	H: Subunit VIII of photosystem I reaction centre, PsaI (From Topology)	T: Subunit VIII of photosystem I reaction centre, PsaI	F: PSI_8	ECOD (1.6)
R	PSI_8	e6pgkR1	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)
FA [auth f]	PSI_PsaJ	e6pgkf1	A: extended segments	X: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	H: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	T: Subunit IX of photosystem I reaction centre, PsaJ	F: PSI_PsaJ	ECOD (1.6)
J	PSI_PsaJ	e6pgkJ1	A: extended segments	X: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	H: Subunit IX of photosystem I reaction centre, PsaJ (From Topology)	T: Subunit IX of photosystem I reaction centre, PsaJ	F: PSI_PsaJ	ECOD (1.6)
S	PSI_PsaJ	e6pgkS1	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)
GA [auth g]	PSI_PSAK	e6pgkg1	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	e6pgkK1	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)
T	PSI_PSAK	e6pgkT1	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)
HA [auth h]	PsaL	e6pgkh1	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)
L	PsaL	e6pgkL1	A: alpha bundles	X: Photosystem I reaction center subunit XI, PsaL (From Topology)	H: Photosystem I reaction center subunit XI, PsaL (From Topology)	T: Photosystem I reaction center subunit XI, PsaL	F: PsaL	ECOD (1.6)
U	PsaL	e6pgkU1	A: alpha bundles	X: Photosystem I reaction center subunit XI, PsaL (From Topology)	H: Photosystem I reaction center subunit XI, PsaL (From Topology)	T: Photosystem I reaction center subunit XI, PsaL	F: PsaL	ECOD (1.6)
IA [auth i]	PsaM	e6pgki1	A: extended segments	X: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	H: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	T: Subunit XII of photosystem I reaction centre, PsaM	F: PsaM	ECOD (1.6)
M	PsaM	e6pgkM1	A: extended segments	X: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	H: Subunit XII of photosystem I reaction centre, PsaM (From Topology)	T: Subunit XII of photosystem I reaction centre, PsaM	F: PsaM	ECOD (1.6)
V	PsaM	e6pgkV1	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)
JA [auth j]	PsaX	e6pgkj1	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)
W	PsaX	e6pgkW1	A: extended segments	X: Subunit PsaX of photosystem I reaction centre (From Topology)	H: Subunit PsaX of photosystem I reaction centre (From Topology)	T: Subunit PsaX of photosystem I reaction centre	F: PsaX	ECOD (1.6)
X	PsaX	e6pgkX1	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)
BA [auth b]	PsaD	e6pgkb1	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)
D	PsaD	e6pgkD1	A: a+b two layers	X: Photosystem I subunit PsaD (From Topology)	H: Photosystem I subunit PsaD (From Topology)	T: Photosystem I subunit PsaD	F: PsaD	ECOD (1.6)
O	PsaD	e6pgkO1	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)

Domain Annotation: CATH CATH Database Homepage

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

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, G, Y	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
A, G, Y	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
B, H, Z	PF02605	Photosystem I reaction centre subunit XI (PsaL)	Photosystem I reaction centre subunit XI	-	Family
B, H, Z	PF02531	PsaD (PsaD)	PsaD	-	Family
B, H, Z	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
AA [auth a], C, N	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
AA [auth a], C, N	PF12838	4Fe-4S dicluster domain (Fer4_7)	4Fe-4S dicluster domain	Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. Domain contai ...	Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. Domain contains two 4Fe4S clusters.	Domain
CA [auth c], E, P	PF02427	Photosystem I reaction centre subunit IV / PsaE (PSI_PsaE)	Photosystem I reaction centre subunit IV / PsaE	PsaE is a 69 amino acid polypeptide from photosystem I present on the stromal side of the thylakoid membrane [1]. The structure is comprised of a well-defined five-stranded beta-sheet similar to SH3 domains [1].	Domain
CA [auth c], E, P	PF00796	Photosystem I reaction centre subunit VIII (PSI_8)	Photosystem I reaction centre subunit VIII	-	Family
DA [auth d], F, Q	PF01701	Photosystem I reaction centre subunit IX / PsaJ (PSI_PsaJ)	Photosystem I reaction centre subunit IX / PsaJ	-	Family
DA [auth d], F, Q	PF02507	Photosystem I reaction centre subunit III (PSI_PsaF)	Photosystem I reaction centre subunit III	-	Family
EA [auth e], I, R	PF07465	Photosystem I protein M (PsaM) (PsaM)	Photosystem I protein M (PsaM)	-	Family
EA [auth e], I, R	PF00796	Photosystem I reaction centre subunit VIII (PSI_8)	Photosystem I reaction centre subunit VIII	-	Family
FA [auth f], J, S	PF01701	Photosystem I reaction centre subunit IX / PsaJ (PSI_PsaJ)	Photosystem I reaction centre subunit IX / PsaJ	-	Family
HA [auth h], L, U	PF02605	Photosystem I reaction centre subunit XI (PsaL)	Photosystem I reaction centre subunit XI	-	Family
IA [auth i], M, V	PF07465	Photosystem I protein M (PsaM) (PsaM)	Photosystem I protein M (PsaM)	-	Family
BA [auth b], D, O	PF02507	Photosystem I reaction centre subunit III (PSI_PsaF)	Photosystem I reaction centre subunit III	-	Family
BA [auth b], D, O	PF02531	PsaD (PsaD)	PsaD	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, G, Y	Photosystem I P700 chlorophyll a apoprotein A1	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding chlorophyll binding organic cyclic compound binding tetrapyrrole binding cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding chlorophyll binding organic cyclic compound binding tetrapyrrole binding electron transfer activity	photosynthesis metabolic process cellular process	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, H, Z	Photosystem I P700 chlorophyll a apoprotein A2	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding chlorophyll binding organic cyclic compound binding tetrapyrrole binding cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding chlorophyll binding organic cyclic compound binding tetrapyrrole binding electron transfer activity	photosynthesis metabolic process cellular process	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 a], C, N	Photosystem I iron-sulfur center	oxidoreductase activity catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding electron transfer activity cation binding ion binding metal ion binding	photosynthesis photosynthesis, light reaction photosynthetic electron transport chain 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
CA [auth c], E, P	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
DA [auth d], F, Q	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
EA [auth e], I, R	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
FA [auth f], J, S	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
GA [auth g], K, T	Photosystem I reaction center subunit PsaK	-	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
HA [auth h], L, U	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
IA [auth i], M, V	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
JA [auth j], W, X	Photosystem I 4.8K protein	-	-	cellular anatomical structure membrane
BA [auth b], D, O	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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, G, Y	IPR006243	Photosystem I PsaA	Family
A, G, Y	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
A, G, Y	IPR001280	Photosystem I PsaA/PsaB	Family
A, G, Y	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
B, H, Z	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
B, H, Z	IPR001280	Photosystem I PsaA/PsaB	Family
B, H, Z	IPR006244	Photosystem I PsaB	Family
B, H, Z	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
AA [auth a], C, N	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
AA [auth a], C, N	IPR050157	Photosystem I iron-sulfur center	Family
AA [auth a], C, N	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
AA [auth a], C, N	IPR017491	Photosystem I protein PsaC	Family
CA [auth c], E, P	IPR008990	Electron transport accessory-like domain superfamily	Homologous Superfamily
CA [auth c], E, P	IPR003375	Photosystem I PsaE, reaction centre subunit IV	Family
DA [auth d], F, Q	IPR036577	Photosystem I PsaF, reaction centre subunit III superfamily	Homologous Superfamily
DA [auth d], F, Q	IPR003666	Photosystem I PsaF, reaction centre subunit III	Family
EA [auth e], I, R	IPR036357	Photosystem I reaction centre subunit VIII superfamily	Homologous Superfamily
EA [auth e], I, R	IPR001302	Photosystem I reaction centre subunit VIII	Family
FA [auth f], J, S	IPR002615	Photosystem I PsaJ, reaction centre subunit IX	Family
FA [auth f], J, S	IPR036062	Photosystem I PsaJ, reaction centre subunit IX superfamily	Homologous Superfamily
GA [auth g], K, T	IPR037101	Photosystem I reaction centre subunit PsaK	Homologous Superfamily
GA [auth g], K, T	IPR000549	Photosystem I reaction center subunit V/PsaK	Family
GA [auth g], K, T	IPR035982	Photosystem I reaction centre subunit PsaK superfamily	Homologous Superfamily
GA [auth g], K, T	IPR017492	Photosystem I reaction center subunit PsaK	Family
HA [auth h], L, U	IPR003757	Photosystem I PsaL, reaction centre subunit XI	Domain
HA [auth h], L, U	IPR022980	Photosystem I, reaction centre subunit XI	Family
HA [auth h], L, U	IPR036592	Photosystem I PsaL, reaction centre subunit XI superfamily	Homologous Superfamily
IA [auth i], M, V	IPR010010	Photosystem I PsaM, reaction centre	Family
IA [auth i], M, V	IPR037279	Photosystem I PsaM, reaction centre superfamily	Homologous Superfamily
JA [auth j], W, X	IPR036243	Photosystem I PsaX superfamily	Homologous Superfamily
JA [auth j], W, X	IPR012986	Photosystem I PsaX	Family
BA [auth b], D, O	IPR003685	Photosystem I PsaD	Family
BA [auth b], D, O	IPR036579	Photosystem I, reaction centre subunit PsaD superfamily	Homologous Superfamily

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, AA [auth a], B, C, CA [auth c] A, AA [auth a], B, C, CA [auth c], DA [auth d], E, EA [auth e], F, FA [auth f], G, GA [auth g], H, HA [auth h], I, IA [auth i], J, JA [auth j], K, L, M, N, P, Q, R, S, T, U, V, W, X, Y, Z	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Photosystems	Photosystem I, megahertz XFEL structure