Annotations: 6FOS

Cyanidioschyzon merolae photosystem I

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
I [auth F]	SCOP2 Family	Subunit III of photosystem I reaction centre, PsaF	8074439	4002091	SCOP2 (2022-06-29)
I [auth F]	SCOP2 Superfamily	Subunit III of photosystem I reaction centre, PsaF	8074440	3000813	SCOP2 (2022-06-29)
H [auth E]	SCOP2 Family	Photosystem I accessory protein E (PsaE)	8074495	4001749	SCOP2 (2022-06-29)
H [auth E]	SCOP2 Superfamily	Electron transport accessory proteins	8074496	3000325	SCOP2 (2022-06-29)
N [auth M]	SCOP2 Family	Subunit XII of photosystem I reaction centre, PsaM	8074451	4002104	SCOP2 (2022-06-29)
N [auth M]	SCOP2 Superfamily	Subunit XII of photosystem I reaction centre, PsaM	8074452	3000829	SCOP2 (2022-06-29)
M [auth L]	SCOP2 Family	Photosystem I reaction center subunit XI, PsaL	8087171	4002135	SCOP2 (2022-06-29)
M [auth L]	SCOP2 Superfamily	Photosystem I reaction center subunit XI, PsaL	8087172	3000870	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)
J [auth I]	HTH_24	e6fosI1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: HTH_24	ECOD (v295.2)
I [auth F]	zf-C3HC4_5	e6fosF1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: zf-C3HC4_5	ECOD (v295.2)
H [auth E]	HTH_24	e6fosE1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: HTH_24	ECOD (v295.2)
G [auth D]	HTH_24	e6fosD1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: HTH_24	ECOD (v295.2)
F [auth C]	zf-C3HC4_5	e6fosC1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: zf-C3HC4_5	ECOD (v295.2)
E [auth B]	zf-C3HC4_5	e6fosB1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: zf-C3HC4_5	ECOD (v295.2)
D [auth A]	zf-C3HC4_5	e6fosA1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: zf-C3HC4_5	ECOD (v295.2)
C [auth 4]	zf-C3HC4_5	e6fos41	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: zf-C3HC4_5	ECOD (v295.2)
N [auth M]	HTH_24	e6fosM1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: HTH_24	ECOD (v295.2)
M [auth L]	HTH_24	e6fosL1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: HTH_24	ECOD (v295.2)
L [auth K]	zf-C3HC4_5	e6fosK1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: zf-C3HC4_5	ECOD (v295.2)
K [auth J]	zf-C3HC4_5	e6fosJ1	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: zf-C3HC4_5	ECOD (v295.2)
B [auth 3]	zf-C3HC4_5	e6fos31	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: zf-C3HC4_5	ECOD (v295.2)
A [auth 2]	zf-C3HC4_5	e6fos21	A: alpha arrays	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: zf-C3HC4_5	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
I [auth F]	1.10.8.110	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
H [auth E]	2.30.30.50	Mainly Beta	Roll	SH3 type barrels.		CATH (4.3.0)
G [auth D]	3.30.1470.10	Alpha Beta	2-Layer Sandwich	Photosystem 1 Reaction Centre Subunit Ii	Chain: D	CATH (utative)
F [auth C]	3.30.70.20	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
E [auth B]	1.20.1130.10	Mainly Alpha	Up-down Bundle	Photosystem I p700 chlorophyll A apoprotein A1	Photosystem I PsaA/PsaB	CATH (utative)
D [auth A]	1.20.1130.10	Mainly Alpha	Up-down Bundle	Photosystem I p700 chlorophyll A apoprotein A1	Photosystem I PsaA/PsaB	CATH (utative)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
J [auth I]	Photosystem I reaction center subunit VIII	-	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 membrane-bounded organelle 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 membrane-bounded organelle plastid membrane plastid intracellular membrane-bounded organelle plastid thylakoid membrane thylakoid membrane plastid thylakoid organelle envelope cytoplasm organelle membrane plastid envelope
I [auth F]	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 chloroplast thylakoid membrane membrane-bounded organelle plastid membrane plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope chloroplast intracellular membrane-bounded organelle thylakoid membrane chloroplast thylakoid outer membrane cytoplasm organelle membrane
H [auth E]	Photosystem I iron-sulfur center subunit VII	-	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
G [auth D]	Photosystem I p700 chlorophyll A apoprotein A2	-	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 chloroplast thylakoid membrane membrane-bounded organelle plastid membrane plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope chloroplast intracellular membrane-bounded organelle thylakoid membrane chloroplast thylakoid outer membrane cytoplasm organelle membrane
F [auth C]	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	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	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope thylakoid chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
E [auth B]	Photosystem I P700 chlorophyll a apoprotein A2	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding electron transfer activity	photosynthesis metabolic process cellular process	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope thylakoid chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
D [auth A]	Photosystem I P700 chlorophyll a apoprotein A1	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding electron transfer activity	photosynthesis metabolic process cellular process	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope thylakoid chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane
C [auth 4]	Similar to light harvesting protein	-	photosynthesis photosynthesis, light reaction photosynthesis, light harvesting metabolic process cellular process generation of precursor metabolites and energy	cellular anatomical structure membrane membrane-bounded organelle intracellular organelle intracellular anatomical structure plastid organelle cytoplasm intracellular membrane-bounded organelle chloroplast
O	PsaM	-	-	-
N [auth M]	Photosystem I reaction center subunit XII	-	photosynthesis metabolic process cellular process	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope thylakoid chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane
M [auth L]	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 chloroplast thylakoid membrane membrane-bounded organelle plastid membrane plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid organelle envelope bounding membrane of organelle plastid envelope chloroplast intracellular membrane-bounded organelle thylakoid membrane chloroplast thylakoid outer membrane cytoplasm organelle membrane
L [auth K]	Photosystem I reaction center subunit X	-	photosynthesis metabolic process cellular process	intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membrane membraneless organelle intracellular membraneless organelle photosynthetic membrane thylakoid membrane thylakoid protein-containing complex photosystem photosystem I membrane protein complex
K [auth J]	Photosystem I reaction center subunit IX	-	photosynthesis metabolic process cellular process	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope cellular anatomical structure bounding membrane of organelle membraneless organelle plastid envelope thylakoid chloroplast membrane intracellular membraneless organelle intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
A [auth 2], B [auth 3]	Similar to chlorophyll a/b-binding protein, CP24	-	photosynthesis photosynthesis, light reaction photosynthesis, light harvesting metabolic process cellular process generation of precursor metabolites and energy	cellular anatomical structure membrane membrane-bounded organelle intracellular organelle intracellular anatomical structure plastid organelle cytoplasm intracellular membrane-bounded organelle chloroplast

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
J [auth I]	IPR036357	Photosystem I reaction centre subunit VIII superfamily	Homologous Superfamily
J [auth I]	IPR001302	Photosystem I reaction centre subunit VIII	Family
I [auth F]	IPR036577	Photosystem I PsaF, reaction centre subunit III superfamily	Homologous Superfamily
I [auth F]	IPR003666	Photosystem I PsaF, reaction centre subunit III	Family
H [auth E]	IPR008990	Electron transport accessory-like domain superfamily	Homologous Superfamily
H [auth E]	IPR003375	Photosystem I PsaE, reaction centre subunit IV	Family
G [auth D]	IPR003685	Photosystem I PsaD	Family
G [auth D]	IPR036579	Photosystem I, reaction centre subunit PsaD superfamily	Homologous Superfamily
F [auth C]	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
F [auth C]	IPR050157	Photosystem I iron-sulfur center	Family
F [auth C]	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
F [auth C]	IPR017491	Photosystem I protein PsaC	Family
E [auth B]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
E [auth B]	IPR001280	Photosystem I PsaA/PsaB	Family
E [auth B]	IPR006244	Photosystem I PsaB	Family
E [auth B]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
D [auth A]	IPR006243	Photosystem I PsaA	Family
D [auth A]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
D [auth A]	IPR001280	Photosystem I PsaA/PsaB	Family
D [auth A]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
C [auth 4]	IPR001344	Chlorophyll A-B binding protein, plant and chromista	Family
C [auth 4]	IPR022796	Chlorophyll A-B binding protein	Family
O	IPR017498	Photosystem I PsaO	Family
N [auth M]	IPR010010	Photosystem I PsaM, reaction centre	Family
N [auth M]	IPR037279	Photosystem I PsaM, reaction centre superfamily	Homologous Superfamily
M [auth L]	IPR003757	Photosystem I PsaL, reaction centre subunit XI	Domain
M [auth L]	IPR022980	Photosystem I, reaction centre subunit XI	Family
M [auth L]	IPR036592	Photosystem I PsaL, reaction centre subunit XI superfamily	Homologous Superfamily
L [auth K]	IPR037101	Photosystem I reaction centre subunit PsaK	Homologous Superfamily
L [auth K]	IPR000549	Photosystem I reaction center subunit V/PsaK	Family
L [auth K]	IPR035982	Photosystem I reaction centre subunit PsaK superfamily	Homologous Superfamily
K [auth J]	IPR002615	Photosystem I PsaJ, reaction centre subunit IX	Family
K [auth J]	IPR036062	Photosystem I PsaJ, reaction centre subunit IX superfamily	Homologous Superfamily
A [auth 2], B [auth 3]	IPR001344	Chlorophyll A-B binding protein, plant and chromista	Family
A [auth 2], B [auth 3]	IPR022796	Chlorophyll A-B binding protein	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
D [auth A], E [auth B], F [auth C], H [auth E], I [auth F] D [auth A], E [auth B], F [auth C], H [auth E], I [auth F], J [auth I], K [auth J], L [auth K], M [auth L], N [auth M], O	OPM	Transmembrane	Alpha-helical polytopic	Photosystems	Photosystem I

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
D [auth A], E [auth B], F [auth C], H [auth E], I [auth F] D [auth A], E [auth B], F [auth C], H [auth E], I [auth F], J [auth I], K [auth J], L [auth K], M [auth L], N [auth M], O	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
D [auth A], E [auth B], F [auth C], H [auth E], I [auth F] D [auth A], E [auth B], F [auth C], H [auth E], I [auth F], J [auth I], K [auth J], L [auth K], M [auth L], N [auth M], O	MemProtMD	Annotated as membrane protein by MemProtMD