7F4V | pdb_00007f4v

Cryo-EM structure of a primordial cyanobacterial photosystem I

External Resource: Annotation

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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
S [auth bL]	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8107306	3000870	SCOP2B (2022-06-29)
I [auth aL]	SCOP2 Family	Photosystem I reaction center subunit XI, PsaL	8107305	4002135	SCOP2 (2022-06-29)
I [auth aL]	SCOP2 Superfamily	Photosystem I reaction center subunit XI, PsaL	8107306	3000870	SCOP2 (2022-06-29)
CA [auth cL]	SCOP2B Superfamily	Photosystem I reaction center subunit XI, PsaL	8107306	3000870	SCOP2B (2022-06-29)
Z [auth cF]	SCOP2 Family	Subunit III of photosystem I reaction centre, PsaF	8107303	4002091	SCOP2 (2022-06-29)
Z [auth cF]	SCOP2 Superfamily	Subunit III of photosystem I reaction centre, PsaF	8107304	3000813	SCOP2 (2022-06-29)
P [auth bF]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8107304	3000813	SCOP2B (2022-06-29)
F [auth aF]	SCOP2B Superfamily	Subunit III of photosystem I reaction centre, PsaF	8107304	3000813	SCOP2B (2022-06-29)
Y [auth cE]	SCOP2B Superfamily	Electron transport accessory proteins	8107300	3000325	SCOP2B (2022-06-29)
O [auth bE]	SCOP2B Superfamily	Electron transport accessory proteins	8107300	3000325	SCOP2B (2022-06-29)
E [auth aE]	SCOP2 Family	Photosystem I accessory protein E (PsaE)	8107299	4001749	SCOP2 (2022-06-29)
E [auth aE]	SCOP2 Superfamily	Electron transport accessory proteins	8107300	3000325	SCOP2 (2022-06-29)
X [auth cD]	SCOP2B Superfamily	Photosystem I subunit PsaD	8107294	3000951	SCOP2B (2022-06-29)
N [auth bD]	SCOP2B Superfamily	Photosystem I subunit PsaD	8107294	3000951	SCOP2B (2022-06-29)
D [auth aD]	SCOP2 Family	Photosystem I subunit PsaD	8107293	4003498	SCOP2 (2022-06-29)
D [auth aD]	SCOP2 Superfamily	Photosystem I subunit PsaD	8107294	3000951	SCOP2 (2022-06-29)
W [auth cC]	SCOP2B Superfamily	4Fe-4S ferredoxins	8107302	3000020	SCOP2B (2022-06-29)
M [auth bC]	SCOP2 Family	7-Fe ferredoxin	8107301	4001227	SCOP2 (2022-06-29)
M [auth bC]	SCOP2 Superfamily	4Fe-4S ferredoxins	8107302	3000020	SCOP2 (2022-06-29)
C [auth aC]	SCOP2B Superfamily	4Fe-4S ferredoxins	8107302	3000020	SCOP2B (2022-06-29)
V [auth cB]	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8107295	4002118	SCOP2 (2022-06-29)
V [auth cB]	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8107296	3000850	SCOP2 (2022-06-29)
L [auth bB]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8107296	3000850	SCOP2B (2022-06-29)
B [auth aB]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8107296	3000850	SCOP2B (2022-06-29)
U [auth cA]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8107298	3000850	SCOP2B (2022-06-29)
K [auth bA]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8107298	3000850	SCOP2B (2022-06-29)
A [auth aA]	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8107297	4002118	SCOP2 (2022-06-29)
A [auth aA]	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8107298	3000850	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
S [auth bL]	I-set	e7f4vbL1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
I [auth aL]	I-set	e7f4vaL1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
CA [auth cL]	I-set	e7f4vcL1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
Q [auth bI]	I-set	e7f4vbI1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
G [auth aI]	I-set	e7f4vaI1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
AA [auth cI]	I-set	e7f4vcI1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
Z [auth cF]	I-set	e7f4vcF1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
P [auth bF]	I-set	e7f4vbF1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
F [auth aF]	I-set	e7f4vaF1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
Y [auth cE]	I-set	e7f4vcE1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
O [auth bE]	I-set	e7f4vbE1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
E [auth aE]	I-set	e7f4vaE1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
X [auth cD]	I-set	e7f4vcD1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
N [auth bD]	I-set	e7f4vbD1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
D [auth aD]	I-set	e7f4vaD1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
W [auth cC]	I-set	e7f4vcC1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
M [auth bC]	I-set	e7f4vbC1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
C [auth aC]	I-set	e7f4vaC1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
V [auth cB]	I-set	e7f4vcB1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
L [auth bB]	I-set	e7f4vbB1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
B [auth aB]	I-set	e7f4vaB1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
T [auth bM]	I-set	e7f4vbM1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
J [auth aM]	I-set	e7f4vaM1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
DA [auth cM]	I-set	e7f4vcM1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
U [auth cA]	I-set	e7f4vcA1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
K [auth bA]	I-set	e7f4vbA1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)
A [auth aA]	I-set	e7f4vaA1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (v294.1)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
CA [auth cL], I [auth aL], S [auth bL]	Photosystem I reaction center subunit XI	-	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
BA [auth cJ], H [auth aJ], R [auth bJ]	Unknown protein	-	-	-
AA [auth cI], G [auth aI], Q [auth bI]	Photosystem I reaction center subunit Z	-	photosynthesis metabolic process cellular process	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex photosystem intracellular anatomical structure photosystem I membrane protein complex intracellular membraneless organelle intracellular organelle organelle membraneless organelle photosynthetic membrane cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex photosystem intracellular anatomical structure photosystem I membrane protein complex intracellular membraneless organelle intracellular organelle organelle membraneless organelle photosynthetic membrane thylakoid
F [auth aF], P [auth bF], Z [auth cF]	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
E [auth aE], O [auth bE], Y [auth cE]	Photosystem I reaction center subunit IV	-	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
D [auth aD], N [auth bD], X [auth cD]	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
C [auth aC], M [auth bC], W [auth cC]	Photosystem I iron-sulfur center	oxidoreductase activity catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding electron transfer activity cation binding ion binding metal ion binding	photosynthesis photosynthesis, light reaction photosynthetic electron transport chain electron transport chain metabolic process cellular process generation of precursor metabolites and energy photosynthetic electron transport in photosystem I	intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membrane membraneless organelle intracellular membraneless organelle photosynthetic membrane thylakoid membrane thylakoid cell periphery plasma membrane protein-containing complex photosystem intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membrane membraneless organelle intracellular membraneless organelle photosynthetic membrane thylakoid membrane thylakoid cell periphery plasma membrane protein-containing complex photosystem photosystem I membrane protein complex
B [auth aB], L [auth bB], V [auth cB]	Photosystem I P700 chlorophyll a apoprotein A2	oxidoreductase activity catalytic activity chlorophyll binding binding tetrapyrrole binding iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding ion binding metal ion binding	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 thylakoid cell periphery 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 thylakoid cell periphery plasma membrane
DA [auth cM], J [auth aM], T [auth bM]	Photosystem I reaction center subunit XII	-	photosynthesis metabolic process cellular process	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex photosystem intracellular anatomical structure photosystem I membrane protein complex intracellular membraneless organelle intracellular organelle organelle membraneless organelle photosynthetic membrane cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex photosystem intracellular anatomical structure photosystem I membrane protein complex intracellular membraneless organelle intracellular organelle organelle membraneless organelle photosynthetic membrane thylakoid
A [auth aA], K [auth bA], U [auth cA]	Photosystem I P700 chlorophyll a apoprotein A1	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding oxidoreductase activity catalytic activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding chlorophyll binding tetrapyrrole binding electron transfer activity	photosynthesis metabolic process cellular process	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex photosystem intracellular anatomical structure photosystem I membrane protein complex intracellular membraneless organelle intracellular organelle organelle membraneless organelle photosynthetic membrane cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex photosystem intracellular anatomical structure photosystem I membrane protein complex intracellular membraneless organelle intracellular organelle organelle membraneless organelle photosynthetic membrane thylakoid

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
CA [auth cL], I [auth aL], S [auth bL]	IPR003757	Photosystem I PsaL, reaction centre subunit XI	Domain
CA [auth cL], I [auth aL], S [auth bL]	IPR022980	Photosystem I, reaction centre subunit XI	Family
CA [auth cL], I [auth aL], S [auth bL]	IPR036592	Photosystem I PsaL, reaction centre subunit XI superfamily	Homologous Superfamily
F [auth aF], P [auth bF], Z [auth cF]	IPR036577	Photosystem I PsaF, reaction centre subunit III superfamily	Homologous Superfamily
F [auth aF], P [auth bF], Z [auth cF]	IPR003666	Photosystem I PsaF, reaction centre subunit III	Family
E [auth aE], O [auth bE], Y [auth cE]	IPR008990	Electron transport accessory-like domain superfamily	Homologous Superfamily
E [auth aE], O [auth bE], Y [auth cE]	IPR003375	Photosystem I PsaE, reaction centre subunit IV	Family
D [auth aD], N [auth bD], X [auth cD]	IPR003685	Photosystem I PsaD	Family
D [auth aD], N [auth bD], X [auth cD]	IPR036579	Photosystem I, reaction centre subunit PsaD superfamily	Homologous Superfamily
C [auth aC], M [auth bC], W [auth cC]	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
C [auth aC], M [auth bC], W [auth cC]	IPR050157	Photosystem I iron-sulfur center	Family
C [auth aC], M [auth bC], W [auth cC]	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
C [auth aC], M [auth bC], W [auth cC]	IPR017491	Photosystem I protein PsaC	Family
B [auth aB], L [auth bB], V [auth cB]	IPR006664	Outer membrane protein, bacterial	Domain
B [auth aB], L [auth bB], V [auth cB]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
B [auth aB], L [auth bB], V [auth cB]	IPR001280	Photosystem I PsaA/PsaB	Family
B [auth aB], L [auth bB], V [auth cB]	IPR036737	OmpA-like domain superfamily	Homologous Superfamily
B [auth aB], L [auth bB], V [auth cB]	IPR006665	OmpA-like domain	Domain
B [auth aB], L [auth bB], V [auth cB]	IPR006244	Photosystem I PsaB	Family
B [auth aB], L [auth bB], V [auth cB]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
DA [auth cM], J [auth aM], T [auth bM]	IPR010010	Photosystem I PsaM, reaction centre	Family
A [auth aA], K [auth bA], U [auth cA]	IPR006243	Photosystem I PsaA	Family
A [auth aA], K [auth bA], U [auth cA]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
A [auth aA], K [auth bA], U [auth cA]	IPR001280	Photosystem I PsaA/PsaB	Family
A [auth aA], K [auth bA], U [auth cA]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth aA], AA [auth cI], B [auth aB], C [auth aC], CA [auth cL] A [auth aA], AA [auth cI], B [auth aB], C [auth aC], CA [auth cL], D [auth aD], DA [auth cM], E [auth aE], F [auth aF], G [auth aI], I [auth aL], J [auth aM], K [auth bA], L [auth bB], M [auth bC], N [auth bD], O [auth bE], P [auth bF], Q [auth bI], S [auth bL], T [auth bM], U [auth cA], V [auth cB], W [auth cC], X [auth cD], Y [auth cE], Z [auth cF]	OPM	Transmembrane	Alpha-helical polytopic	Photosystems	Photosystem I

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth aA], AA [auth cI], B [auth aB], C [auth aC], CA [auth cL] A [auth aA], AA [auth cI], B [auth aB], C [auth aC], CA [auth cL], D [auth aD], DA [auth cM], E [auth aE], F [auth aF], G [auth aI], I [auth aL], J [auth aM], K [auth bA], L [auth bB], M [auth bC], N [auth bD], O [auth bE], P [auth bF], Q [auth bI], S [auth bL], T [auth bM], U [auth cA], V [auth cB], W [auth cC], X [auth cD], Y [auth cE], Z [auth cF]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Photosystems	primordial cyanobacterial photosystem I