7QCO

The structure of Photosystem I tetramer from Chroococcidiopsis TS-821, a thermophilic, unicellular, non-heterocyst-forming cyanobacterium

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: PDBTM

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	8093884	3000850	SCOP2B (2022-06-29)
HA [auth a]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8093884	3000850	SCOP2B (2022-06-29)
W [auth e]	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8093883	4002118	SCOP2 (2022-06-29)
W [auth e]	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8093884	3000850	SCOP2 (2022-06-29)
L [auth E]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8093884	3000850	SCOP2B (2022-06-29)
FA [auth s]	SCOP2B Superfamily	Photosystem I reaction center subunit XI PsaL	8095541	3000870	SCOP2B (2022-06-29)
J [auth L]	SCOP2B Superfamily	Photosystem I reaction center subunit XI PsaL	8095541	3000870	SCOP2B (2022-06-29)
QA [auth l]	SCOP2 Family	Photosystem I reaction center subunit XI PsaL	8095540	4002135	SCOP2 (2022-06-29)
QA [auth l]	SCOP2 Superfamily	Photosystem I reaction center subunit XI PsaL	8095541	3000870	SCOP2 (2022-06-29)
U [auth S]	SCOP2B Superfamily	Photosystem I reaction center subunit XI PsaL	8095541	3000870	SCOP2B (2022-06-29)
GA [auth t]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre PsaM	8093970	3000829	SCOP2B (2022-06-29)
RA [auth m]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre PsaM	8093970	3000829	SCOP2B (2022-06-29)
K [auth M]	SCOP2 Family	Subunit XII of photosystem I reaction centre PsaM	8093969	4002104	SCOP2 (2022-06-29)
K [auth M]	SCOP2 Superfamily	Subunit XII of photosystem I reaction centre PsaM	8093970	3000829	SCOP2 (2022-06-29)
V [auth T]	SCOP2B Superfamily	Subunit XII of photosystem I reaction centre PsaM	8093970	3000829	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8093870	3000850	SCOP2B (2022-06-29)
IA [auth b]	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8093869	4002118	SCOP2 (2022-06-29)
IA [auth b]	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8093870	3000850	SCOP2 (2022-06-29)
M [auth G]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8093870	3000850	SCOP2B (2022-06-29)
X [auth g]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8093870	3000850	SCOP2B (2022-06-29)
N [auth H]	SCOP2B Superfamily	4Fe-4S ferredoxins	8093800	3000020	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	4Fe-4S ferredoxins	8093800	3000020	SCOP2B (2022-06-29)
JA [auth c]	SCOP2 Family	7-Fe ferredoxin	8093799	4001227	SCOP2 (2022-06-29)
JA [auth c]	SCOP2 Superfamily	4Fe-4S ferredoxins	8093800	3000020	SCOP2 (2022-06-29)
Y [auth h]	SCOP2B Superfamily	4Fe-4S ferredoxins	8093800	3000020	SCOP2B (2022-06-29)
D	SCOP2 Family	Photosystem I subunit PsaD	8094886	4003498	SCOP2 (2022-06-29)
D	SCOP2 Superfamily	Photosystem I subunit PsaD	8094887	3000951	SCOP2 (2022-06-29)
KA [auth d]	SCOP2B Superfamily	Photosystem I subunit PsaD	8094887	3000951	SCOP2B (2022-06-29)
O [auth N]	SCOP2B Superfamily	Photosystem I subunit PsaD	8094887	3000951	SCOP2B (2022-06-29)
Z [auth n]	SCOP2B Superfamily	Photosystem I subunit PsaD	8094887	3000951	SCOP2B (2022-06-29)
AA [auth v]	SCOP2 Family	Photosystem I accessory protein E (PsaE)	8093895	4001749	SCOP2 (2022-06-29)
AA [auth v]	SCOP2 Superfamily	Electron transport accessory proteins	8093896	3000325	SCOP2 (2022-06-29)
E [auth V]	SCOP2B Superfamily	Electron transport accessory proteins	8093896	3000325	SCOP2B (2022-06-29)
LA [auth w]	SCOP2B Superfamily	Electron transport accessory proteins	8093896	3000325	SCOP2B (2022-06-29)
P [auth W]	SCOP2B Superfamily	Electron transport accessory proteins	8093896	3000325	SCOP2B (2022-06-29)
BA [auth o]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre PsaF	8094693	3000813	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Subunit III of photosystem I reaction centre PsaF	8094693	3000813	SCOP2B (2022-06-29)
Q [auth O]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre PsaF	8094693	3000813	SCOP2B (2022-06-29)
MA [auth f]	SCOP2 Family	Subunit III of photosystem I reaction centre PsaF	8094692	4002091	SCOP2 (2022-06-29)
MA [auth f]	SCOP2 Superfamily	Subunit III of photosystem I reaction centre PsaF	8094693	3000813	SCOP2 (2022-06-29)
CA [auth p]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre PsaI	8095717	3000819	SCOP2B (2022-06-29)
NA [auth i]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre PsaI	8095717	3000819	SCOP2B (2022-06-29)
G [auth I]	SCOP2 Family	Subunit VIII of photosystem I reaction centre PsaI	8095716	4002098	SCOP2 (2022-06-29)
G [auth I]	SCOP2 Superfamily	Subunit VIII of photosystem I reaction centre PsaI	8095717	3000819	SCOP2 (2022-06-29)
R [auth P]	SCOP2B Superfamily	Subunit VIII of photosystem I reaction centre PsaI	8095717	3000819	SCOP2B (2022-06-29)
DA [auth q]	SCOP2 Family	Subunit IX of photosystem I reaction centre PsaJ	8095280	4002101	SCOP2 (2022-06-29)
DA [auth q]	SCOP2 Superfamily	Subunit IX of photosystem I reaction centre PsaJ	8095281	3000824	SCOP2 (2022-06-29)
H [auth J]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre PsaJ	8095281	3000824	SCOP2B (2022-06-29)
OA [auth j]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre PsaJ	8095281	3000824	SCOP2B (2022-06-29)
S [auth Q]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre PsaJ	8095281	3000824	SCOP2B (2022-06-29)
EA [auth r]	SCOP2 Family	Photosystem I reaction center subunit X PsaK	8096695	4002128	SCOP2 (2022-06-29)
EA [auth r]	SCOP2 Superfamily	Photosystem I reaction center subunit X PsaK	8096696	3000859	SCOP2 (2022-06-29)
PA [auth k]	SCOP2B Superfamily	Photosystem I reaction center subunit X PsaK	8096696	3000859	SCOP2B (2022-06-29)
I [auth K]	SCOP2B Superfamily	Photosystem I reaction center subunit X PsaK	8096696	3000859	SCOP2B (2022-06-29)
T [auth R]	SCOP2B Superfamily	Photosystem I reaction center subunit X PsaK	8096696	3000859	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	PF00223	e7qcoA2	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: PF00223	ECOD (1.6)
A	PF00223	e7qcoA1	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: PF00223	ECOD (1.6)
HA [auth a]	PF00223	e7qcoa1	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: PF00223	ECOD (1.6)
HA [auth a]	PF00223	e7qcoa2	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: PF00223	ECOD (1.6)
W [auth e]	PF00223	e7qcoe2	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: PF00223	ECOD (1.6)
W [auth e]	PF00223	e7qcoe1	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: PF00223	ECOD (1.6)
L [auth E]	PF00223	e7qcoE2	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: PF00223	ECOD (1.6)
L [auth E]	PF00223	e7qcoE1	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: PF00223	ECOD (1.6)
FA [auth s]	PF02605	e7qcos1	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: PF02605	ECOD (1.6)
J [auth L]	PF02605	e7qcoL1	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: PF02605	ECOD (1.6)
QA [auth l]	PF02605	e7qcol1	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: PF02605	ECOD (1.6)
U [auth S]	PF02605	e7qcoS1	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: PF02605	ECOD (1.6)
GA [auth t]	PF07465	e7qcot1	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: PF07465	ECOD (1.6)
RA [auth m]	PF07465	e7qcom1	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: PF07465	ECOD (1.6)
K [auth M]	PF07465	e7qcoM1	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: PF07465	ECOD (1.6)
V [auth T]	PF07465	e7qcoT1	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: PF07465	ECOD (1.6)
B	PF00223	e7qcoB1	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: PF00223	ECOD (1.6)
B	PF00223	e7qcoB2	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: PF00223	ECOD (1.6)
IA [auth b]	PF00223	e7qcob2	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: PF00223	ECOD (1.6)
IA [auth b]	PF00223	e7qcob1	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: PF00223	ECOD (1.6)
M [auth G]	PF00223	e7qcoG2	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: PF00223	ECOD (1.6)
M [auth G]	PF00223	e7qcoG1	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: PF00223	ECOD (1.6)
X [auth g]	PF00223	e7qcog2	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: PF00223	ECOD (1.6)
X [auth g]	PF00223	e7qcog1	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: PF00223	ECOD (1.6)
N [auth H]	PF00037	e7qcoH1	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: PF00037	ECOD (1.6)
C	PF00037	e7qcoC1	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: PF00037	ECOD (1.6)
JA [auth c]	PF00037	e7qcoc1	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: PF00037	ECOD (1.6)
Y [auth h]	PF00037	e7qcoh1	A: a+b two layers	X: 4Fe-4S ferredoxin (From Topology)	H: 4Fe-4S ferredoxin (From Topology)	T: 4Fe-4S ferredoxin	F: PF00037	ECOD (1.6)
D	PF02531	e7qcoD1	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: PF02531	ECOD (1.6)
KA [auth d]	PF02531	e7qcod1	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: PF02531	ECOD (1.6)
O [auth N]	PF02531	e7qcoN1	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: PF02531	ECOD (1.6)
Z [auth n]	PF02531	e7qcon1	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: PF02531	ECOD (1.6)
AA [auth v]	PF02427	e7qcov1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PF02427	ECOD (1.6)
E [auth V]	PF02427	e7qcoV1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PF02427	ECOD (1.6)
LA [auth w]	PF02427	e7qcow1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PF02427	ECOD (1.6)
P [auth W]	PF02427	e7qcoW1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PF02427	ECOD (1.6)
BA [auth o]	PF02507	e7qcoo1	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: PF02507	ECOD (1.6)
F	PF02507	e7qcoF1	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: PF02507	ECOD (1.6)
Q [auth O]	PF02507	e7qcoO1	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: PF02507	ECOD (1.6)
MA [auth f]	PF02507	e7qcof1	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: PF02507	ECOD (1.6)
CA [auth p]	PF00796	e7qcop1	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: PF00796	ECOD (1.6)
NA [auth i]	PF00796	e7qcoi1	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: PF00796	ECOD (1.6)
G [auth I]	PF00796	e7qcoI1	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: PF00796	ECOD (1.6)
R [auth P]	PF00796	e7qcoP1	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: PF00796	ECOD (1.6)
DA [auth q]	PF01701	e7qcoq1	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: PF01701	ECOD (1.6)
H [auth J]	PF01701	e7qcoJ1	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: PF01701	ECOD (1.6)
OA [auth j]	PF01701	e7qcoj1	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: PF01701	ECOD (1.6)
S [auth Q]	PF01701	e7qcoQ1	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: PF01701	ECOD (1.6)
EA [auth r]	PF01241	e7qcor1	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: PF01241	ECOD (1.6)
PA [auth k]	PF01241	e7qcok1	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: PF01241	ECOD (1.6)
I [auth K]	PF01241	e7qcoK1	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: PF01241	ECOD (1.6)
T [auth R]	PF01241	e7qcoR1	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: PF01241	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, HA [auth a], L [auth E], W [auth e]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
FA [auth s], J [auth L], QA [auth l], U [auth S]	PF02605	Photosystem I reaction centre subunit XI (PsaL)	Photosystem I reaction centre subunit XI	-	Family
GA [auth t], K [auth M], RA [auth m], V [auth T]	PF07465	Photosystem I protein M (PsaM) (PsaM)	Photosystem I protein M (PsaM)	-	Family
B, IA [auth b], M [auth G], X [auth g]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
C, JA [auth c], N [auth H], Y [auth h]	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, KA [auth d], O [auth N], Z [auth n]	PF02531	PsaD (PsaD)	PsaD	-	Family
AA [auth v], E [auth V], LA [auth w], P [auth W]	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
BA [auth o], F, MA [auth f], Q [auth O]	PF02507	Photosystem I reaction centre subunit III (PSI_PsaF)	Photosystem I reaction centre subunit III	-	Family
CA [auth p], G [auth I], NA [auth i], R [auth P]	PF00796	Photosystem I reaction centre subunit VIII (PSI_8)	Photosystem I reaction centre subunit VIII	-	Family
DA [auth q], H [auth J], OA [auth j], S [auth Q]	PF01701	Photosystem I reaction centre subunit IX / PsaJ (PSI_PsaJ)	Photosystem I reaction centre subunit IX / PsaJ	-	Family
EA [auth r], I [auth K], PA [auth k], T [auth R]	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, HA [auth a], L [auth E], W [auth e]	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
FA [auth s], J [auth L], QA [auth l], U [auth S]	Photosystem I reaction center subunit XI	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
GA [auth t], K [auth M], RA [auth m], V [auth T]	Photosystem I reaction center subunit XII	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex
B, IA [auth b], M [auth G], X [auth g]	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
C, JA [auth c], N [auth H], Y [auth h]	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, KA [auth d], O [auth N], Z [auth n]	Photosystem I reaction center subunit II	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
AA [auth v], E [auth V], LA [auth w], P [auth W]	Photosystem I reaction center subunit IV	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
BA [auth o], F, MA [auth f], Q [auth O]	Photosystem I reaction center subunit III	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane plasma membrane-derived chromatophore cellular anatomical entity thylakoid membrane intracellular organelle cell periphery plasma membrane-derived thylakoid membrane organelle intracellular non-membrane-bounded organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex photosystem I reaction center
CA [auth p], G [auth I], NA [auth i], R [auth P]	Photosystem I reaction center subunit VIII	-	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
DA [auth q], H [auth J], OA [auth j], S [auth Q]	Photosystem I reaction center subunit IX	-	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
EA [auth r], I [auth K], PA [auth k], T [auth R]	Photosystem I reaction center subunit PsaK	-	photosynthesis cellular metabolic process metabolic process cellular process	intracellular organelle intracellular anatomical structure organelle membrane intracellular non-membrane-bounded organelle photosynthetic membrane cellular anatomical entity thylakoid membrane thylakoid non-membrane-bounded organelle protein-containing complex photosystem photosystem I membrane protein complex

InterPro: Protein Family Classification InterPro Database Homepage

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

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, AA [auth v], B, BA [auth o], C A, AA [auth v], B, BA [auth o], C, CA [auth p], DA [auth q], E [auth V], EA [auth r], F, FA [auth s], G [auth I], GA [auth t], H [auth J], HA [auth a], I [auth K], IA [auth b], J [auth L], JA [auth c], K [auth M], L [auth E], LA [auth w], M [auth G], MA [auth f], N [auth H], NA [auth i], OA [auth j], P [auth W], PA [auth k], Q [auth O], QA [auth l], R [auth P], RA [auth m], S [auth Q], T [auth R], U [auth S], V [auth T], W [auth e], X [auth g], Y [auth h]	PDBTM	Annotated as membrane protein by PDBTM