6QPH

Dunaliella minimal PSI complex

External Resource: Annotation

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: 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)
A [auth 1]	SCOP2B Superfamily	Chlorophyll a-b binding protein	8097368	3000343	SCOP2B (2022-06-29)
K [auth J]	SCOP2B Superfamily	Subunit IX of photosystem I reaction centre PsaJ	8094931	3000824	SCOP2B (2022-06-29)
C [auth 3]	SCOP2B Superfamily	Chlorophyll a-b binding protein	8097370	3000343	SCOP2B (2022-06-29)
E [auth A]	SCOP2B Superfamily	Photosystem I subunits PsaA/PsaB	8094473	3000850	SCOP2B (2022-06-29)
F [auth B]	SCOP2 Family	Photosystem I subunits PsaA/PsaB	8094504	4002118	SCOP2 (2022-06-29)
F [auth B]	SCOP2 Superfamily	Photosystem I subunits PsaA/PsaB	8094505	3000850	SCOP2 (2022-06-29)
G [auth C]	SCOP2 Family	7-Fe ferredoxin	8093849	4001227	SCOP2 (2022-06-29)
G [auth C]	SCOP2 Superfamily	4Fe-4S ferredoxins	8093850	3000020	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)
A [auth 1]	PF00504	e6qph11	A: extended segments	X: Chlorophyll a-b binding protein (From Topology)	H: Chlorophyll a-b binding protein (From Topology)	T: Chlorophyll a-b binding protein	F: PF00504	ECOD (1.6)
J [auth F]	PF02507	e6qphF1	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)
K [auth J]	PF01701	e6qphJ1	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)
B [auth 2]	PF00504	e6qph21	A: extended segments	X: Chlorophyll a-b binding protein (From Topology)	H: Chlorophyll a-b binding protein (From Topology)	T: Chlorophyll a-b binding protein	F: PF00504	ECOD (1.6)
C [auth 3]	PF00504	e6qph31	A: extended segments	X: Chlorophyll a-b binding protein (From Topology)	H: Chlorophyll a-b binding protein (From Topology)	T: Chlorophyll a-b binding protein	F: PF00504	ECOD (1.6)
D [auth 4]	PF00504	e6qph41	A: extended segments	X: Chlorophyll a-b binding protein (From Topology)	H: Chlorophyll a-b binding protein (From Topology)	T: Chlorophyll a-b binding protein	F: PF00504	ECOD (1.6)
E [auth A]	PF00223	e6qphA1	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)
E [auth A]	PF00223	e6qphA2	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)
F [auth B]	PF00223	e6qphB2	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)
F [auth B]	PF00223	e6qphB1	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)
G [auth C]	PF00037	e6qphC1	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)
H [auth D]	PF02531	e6qphD1	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)
I [auth E]	PF02427	e6qphE1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PF02427	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

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

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth 1]	PF00504	Chlorophyll A-B binding protein (Chloroa_b-bind)	Chlorophyll A-B binding protein	-	Family
K [auth J]	PF01701	Photosystem I reaction centre subunit IX / PsaJ (PSI_PsaJ)	Photosystem I reaction centre subunit IX / PsaJ	-	Family
C [auth 3]	PF00504	Chlorophyll A-B binding protein (Chloroa_b-bind)	Chlorophyll A-B binding protein	-	Family
E [auth A]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
F [auth B]	PF00223	Photosystem I psaA/psaB protein (PsaA_PsaB)	Photosystem I psaA/psaB protein	-	Family
G [auth C]	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth 1]	Chlorophyll a-b binding protein, chloroplastic	chlorophyll binding binding organic cyclic compound binding tetrapyrrole binding	photosynthesis photosynthesis, light reaction cellular metabolic process photosynthesis, light harvesting metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle photosynthetic membrane thylakoid non-membrane-bounded organelle chloroplast thylakoid membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle photosynthetic membrane thylakoid non-membrane-bounded organelle 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 photosystem I
J [auth F]	PsaF	-	-	-
K [auth J]	Photosystem I reaction center subunit IX	-	photosynthesis cellular metabolic process 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 bounding membrane of organelle thylakoid plastid envelope chloroplast chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope bounding membrane of organelle thylakoid plastid envelope chloroplast non-membrane-bounded organelle membrane cellular anatomical entity intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid intracellular non-membrane-bounded organelle outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
B [auth 2]	Lhc2	-	-	-
C [auth 3]	Chlorophyll a-b binding protein, chloroplastic	chlorophyll binding binding organic cyclic compound binding tetrapyrrole binding	photosynthesis photosynthesis, light reaction cellular metabolic process photosynthesis, light harvesting metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle photosynthetic membrane thylakoid non-membrane-bounded organelle chloroplast thylakoid membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle photosynthetic membrane thylakoid non-membrane-bounded organelle 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 photosystem I
D [auth 4]	Lhc4	-	-	-
E [auth A]	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	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope bounding membrane of organelle thylakoid plastid envelope chloroplast chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope bounding membrane of organelle thylakoid plastid envelope chloroplast non-membrane-bounded organelle membrane cellular anatomical entity intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid intracellular non-membrane-bounded organelle outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
F [auth B]	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	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope bounding membrane of organelle thylakoid plastid envelope chloroplast chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope bounding membrane of organelle thylakoid plastid envelope chloroplast non-membrane-bounded organelle membrane cellular anatomical entity intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid intracellular non-membrane-bounded organelle outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
G [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 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	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope bounding membrane of organelle thylakoid plastid envelope chloroplast chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope bounding membrane of organelle thylakoid plastid envelope chloroplast non-membrane-bounded organelle membrane cellular anatomical entity intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid intracellular non-membrane-bounded organelle outer membrane cytoplasm photosynthetic membrane organelle membrane protein-containing complex photosystem photosystem I membrane protein complex
H [auth D]	PsaD	-	-	-
I [auth E]	PsaE	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth 1]	IPR001344	Chlorophyll A-B binding protein, plant and chromista	Family
A [auth 1]	IPR022796	Chlorophyll A-B binding protein	Family
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
C [auth 3]	IPR001344	Chlorophyll A-B binding protein, plant and chromista	Family
C [auth 3]	IPR022796	Chlorophyll A-B binding protein	Family
E [auth A]	IPR006243	Photosystem I PsaA	Family
E [auth A]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
E [auth A]	IPR001280	Photosystem I PsaA/PsaB	Family
E [auth A]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
F [auth B]	IPR036408	Photosystem I PsaA/PsaB superfamily	Homologous Superfamily
F [auth B]	IPR001280	Photosystem I PsaA/PsaB	Family
F [auth B]	IPR006244	Photosystem I PsaB	Family
F [auth B]	IPR020586	Photosystem I PsaA/PsaB, conserved site	Conserved Site
G [auth C]	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
G [auth C]	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
G [auth C]	IPR017491	Photosystem I protein PsaC	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
E [auth A], F [auth B], G [auth C], K [auth J]	OPM	Transmembrane	Alpha-helical polytopic	Photosystems	Photosystem I

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
E [auth A], F [auth B], G [auth C], K [auth J]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
E [auth A], F [auth B], G [auth C], K [auth J]	MemProtMD	Annotated as membrane protein by MemProtMD

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.