4V62

Crystal Structure of cyanobacterial Photosystem II

External Resource: Annotation

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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth AA]	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8032741	3000736	SCOP2B (2022-06-29)
U [auth BA]	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8032741	3000736	SCOP2B (2022-06-29)
B [auth AB]	SCOP2B Superfamily	Photosystem II antenna protein-like	8032743	3001674	SCOP2B (2022-06-29)
V [auth BB]	SCOP2B Superfamily	Photosystem II antenna protein-like	8032743	3001674	SCOP2B (2022-06-29)
C [auth AC]	SCOP2B Superfamily	Photosystem II antenna protein-like	8032746	3001674	SCOP2B (2022-06-29)
W [auth BC]	SCOP2B Superfamily	Photosystem II antenna protein-like	8032746	3001674	SCOP2B (2022-06-29)
D [auth AD]	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8032750	3000736	SCOP2B (2022-06-29)
X [auth BD]	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8032750	3000736	SCOP2B (2022-06-29)
E [auth AE]	SCOP2B Superfamily	Cytochrome b559 subunits	8032749	3001602	SCOP2B (2022-06-29)
Y [auth BE]	SCOP2B Superfamily	Cytochrome b559 subunits	8032749	3001602	SCOP2B (2022-06-29)
F [auth AF]	SCOP2B Superfamily	Cytochrome b559 subunits	8032752	3001602	SCOP2B (2022-06-29)
Z [auth BF]	SCOP2B Superfamily	Cytochrome b559 subunits	8032752	3001602	SCOP2B (2022-06-29)
AA [auth BH]	SCOP2B Superfamily	Photosystem II 10 kDa phosphoprotein PsbH	8032753	3001547	SCOP2B (2022-06-29)
G [auth AH]	SCOP2B Superfamily	Photosystem II 10 kDa phosphoprotein PsbH	8032753	3001547	SCOP2B (2022-06-29)
BA [auth BI]	SCOP2B Superfamily	Photosystem II reaction center protein I, PsbI	8032754	3001590	SCOP2B (2022-06-29)
H [auth AI]	SCOP2B Superfamily	Photosystem II reaction center protein I, PsbI	8032754	3001590	SCOP2B (2022-06-29)
EA [auth BL]	SCOP2B Superfamily	Photosystem II reaction center protein L, PsbL	8032759	3001523	SCOP2B (2022-06-29)
K [auth AL]	SCOP2B Superfamily	Photosystem II reaction center protein L, PsbL	8032759	3001523	SCOP2B (2022-06-29)
FA [auth BM]	SCOP2B Superfamily	Photosystem II reaction center protein M, PsbM	8032762	3001573	SCOP2B (2022-06-29)
L [auth AM]	SCOP2B Superfamily	Photosystem II reaction center protein M, PsbM	8032762	3001573	SCOP2B (2022-06-29)
GA [auth BO]	SCOP2B Superfamily	OMPA barrel-like	8032765	3000208	SCOP2B (2022-06-29)
M [auth AO]	SCOP2B Superfamily	OMPA barrel-like	8032765	3000208	SCOP2B (2022-06-29)
HA [auth BT]	SCOP2B Superfamily	Photosystem II reaction center protein T, PsbT	8032769	3001561	SCOP2B (2022-06-29)
N [auth AT]	SCOP2B Superfamily	Photosystem II reaction center protein T, PsbT	8032769	3001561	SCOP2B (2022-06-29)
IA [auth BU]	SCOP2B Superfamily	PsbU/PolX domain-like	8032768	3000893	SCOP2B (2022-06-29)
O [auth AU]	SCOP2B Superfamily	PsbU/PolX domain-like	8032768	3000893	SCOP2B (2022-06-29)
JA [auth BV]	SCOP2B Superfamily	Cytochrome c	8036565	3000815	SCOP2B (2022-06-29)
P [auth AV]	SCOP2B Superfamily	Cytochrome c	8036565	3000815	SCOP2B (2022-06-29)
KA [auth By]	SCOP2B Superfamily	Photosystem II reaction center protein Ycf12	8093136	3002680	SCOP2B (2022-06-29)
Q [auth Ay]	SCOP2B Superfamily	Photosystem II reaction center protein Ycf12	8093136	3002680	SCOP2B (2022-06-29)
NA [auth BZ]	SCOP2B Superfamily	PsbZ-like	8032770	3001624	SCOP2B (2022-06-29)
T [auth AZ]	SCOP2B Superfamily	PsbZ-like	8032770	3001624	SCOP2B (2022-06-29)
DA [auth BK]	SCOP2B Superfamily	Photosystem II reaction center protein K, PsbK	8032757	3001585	SCOP2B (2022-06-29)
J [auth AK]	SCOP2B Superfamily	Photosystem II reaction center protein K, PsbK	8032757	3001585	SCOP2B (2022-06-29)
CA [auth BJ]	SCOP2B Superfamily	Photosystem II reaction center protein J, PsbJ	8032755	3001534	SCOP2B (2022-06-29)
I [auth AJ]	SCOP2B Superfamily	Photosystem II reaction center protein J, PsbJ	8032755	3001534	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 [auth AA]	Photo_RC	e4v62AA1	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: Photo_RC	ECOD (1.6)
U [auth BA]	Photo_RC	e4v62BA1	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: Photo_RC	ECOD (1.6)
B [auth AB]	PSII_1st	e4v62AB1	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: PSII_1st	ECOD (1.6)
B [auth AB]	PSII_2nd	e4v62AB2	A: a+b two layers	X: Photosystem II antenna protein PsbB insertion domain (From Topology)	H: Photosystem II antenna protein PsbB insertion domain (From Topology)	T: Photosystem II antenna protein PsbB insertion domain	F: PSII_2nd	ECOD (1.6)
V [auth BB]	PSII_1st	e4v62BB1	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: PSII_1st	ECOD (1.6)
V [auth BB]	PSII_2nd	e4v62BB2	A: a+b two layers	X: Photosystem II antenna protein PsbB insertion domain (From Topology)	H: Photosystem II antenna protein PsbB insertion domain (From Topology)	T: Photosystem II antenna protein PsbB insertion domain	F: PSII_2nd	ECOD (1.6)
C [auth AC]	PSII_1st	e4v62AC1	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: PSII_1st	ECOD (1.6)
W [auth BC]	PSII_1st	e4v62BC1	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: PSII_1st	ECOD (1.6)
D [auth AD]	Photo_RC	e4v62AD1	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: Photo_RC	ECOD (1.6)
X [auth BD]	Photo_RC	e4v62BD1	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: Photo_RC	ECOD (1.6)
E [auth AE]	Cytochrom_B559a	e4v62AE1	A: extended segments	X: Cytochrome b559 subunits (From Topology)	H: Cytochrome b559 subunits (From Topology)	T: Cytochrome b559 subunits	F: Cytochrom_B559a	ECOD (1.6)
Y [auth BE]	Cytochrom_B559a	e4v62BE1	A: extended segments	X: Cytochrome b559 subunits (From Topology)	H: Cytochrome b559 subunits (From Topology)	T: Cytochrome b559 subunits	F: Cytochrom_B559a	ECOD (1.6)
F [auth AF]	Cytochrom_B559	e4v62AF1	A: extended segments	X: Cytochrome b559 subunits (From Topology)	H: Cytochrome b559 subunits (From Topology)	T: Cytochrome b559 subunits	F: Cytochrom_B559	ECOD (1.6)
Z [auth BF]	Cytochrom_B559	e4v62BF1	A: extended segments	X: Cytochrome b559 subunits (From Topology)	H: Cytochrome b559 subunits (From Topology)	T: Cytochrome b559 subunits	F: Cytochrom_B559	ECOD (1.6)
AA [auth BH]	PsbH	e4v62BH1	A: extended segments	X: Photosystem II 10 kDa phosphoprotein PsbH (From Topology)	H: Photosystem II 10 kDa phosphoprotein PsbH (From Topology)	T: Photosystem II 10 kDa phosphoprotein PsbH	F: PsbH	ECOD (1.6)
G [auth AH]	PsbH	e4v62AH1	A: extended segments	X: Photosystem II 10 kDa phosphoprotein PsbH (From Topology)	H: Photosystem II 10 kDa phosphoprotein PsbH (From Topology)	T: Photosystem II 10 kDa phosphoprotein PsbH	F: PsbH	ECOD (1.6)
BA [auth BI]	PsbI	e4v62BI1	A: extended segments	X: Photosystem II reaction center protein I, PsbI (From Topology)	H: Photosystem II reaction center protein I, PsbI (From Topology)	T: Photosystem II reaction center protein I, PsbI	F: PsbI	ECOD (1.6)
H [auth AI]	PsbI	e4v62AI1	A: extended segments	X: Photosystem II reaction center protein I, PsbI (From Topology)	H: Photosystem II reaction center protein I, PsbI (From Topology)	T: Photosystem II reaction center protein I, PsbI	F: PsbI	ECOD (1.6)
EA [auth BL]	PsbL	e4v62BL1	A: extended segments	X: Photosystem II reaction center protein L, PsbL (From Topology)	H: Photosystem II reaction center protein L, PsbL (From Topology)	T: Photosystem II reaction center protein L, PsbL	F: PsbL	ECOD (1.6)
K [auth AL]	PsbL	e4v62AL1	A: extended segments	X: Photosystem II reaction center protein L, PsbL (From Topology)	H: Photosystem II reaction center protein L, PsbL (From Topology)	T: Photosystem II reaction center protein L, PsbL	F: PsbL	ECOD (1.6)
FA [auth BM]	PsbM	e4v62BM1	A: extended segments	X: Photosystem II reaction center protein M, PsbM (From Topology)	H: Photosystem II reaction center protein M, PsbM (From Topology)	T: Photosystem II reaction center protein M, PsbM	F: PsbM	ECOD (1.6)
L [auth AM]	PsbM	e4v62AM1	A: extended segments	X: Photosystem II reaction center protein M, PsbM (From Topology)	H: Photosystem II reaction center protein M, PsbM (From Topology)	T: Photosystem II reaction center protein M, PsbM	F: PsbM	ECOD (1.6)
GA [auth BO]	MSP	e4v62BO1	A: beta barrels	X: Outer membrane meander beta-barrels	H: OMPA-like (From Topology)	T: OMPA-like	F: MSP	ECOD (1.6)
M [auth AO]	MSP	e4v62AO1	A: beta barrels	X: Outer membrane meander beta-barrels	H: OMPA-like (From Topology)	T: OMPA-like	F: MSP	ECOD (1.6)
HA [auth BT]	PsbT	e4v62BT1	A: extended segments	X: Photosystem II reaction center protein T, PsbT (From Topology)	H: Photosystem II reaction center protein T, PsbT (From Topology)	T: Photosystem II reaction center protein T, PsbT	F: PsbT	ECOD (1.6)
N [auth AT]	PsbT	e4v62AT1	A: extended segments	X: Photosystem II reaction center protein T, PsbT (From Topology)	H: Photosystem II reaction center protein T, PsbT (From Topology)	T: Photosystem II reaction center protein T, PsbT	F: PsbT	ECOD (1.6)
IA [auth BU]	PsbU	e4v62BU1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: PsbU	ECOD (1.6)
O [auth AU]	PsbU	e4v62AU1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: PsbU	ECOD (1.6)
JA [auth BV]	Cytochrom_C550	e4v62BV1	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C550	ECOD (1.6)
P [auth AV]	Cytochrom_C550	e4v62AV1	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C550	ECOD (1.6)
KA [auth By]	PSII_Ycf12	e4v62By1	A: extended segments	X: Photosystem II reaction center protein ycf12 (From Topology)	H: Photosystem II reaction center protein ycf12 (From Topology)	T: Photosystem II reaction center protein ycf12	F: PSII_Ycf12	ECOD (1.6)
Q [auth Ay]	PSII_Ycf12	e4v62Ay1	A: extended segments	X: Photosystem II reaction center protein ycf12 (From Topology)	H: Photosystem II reaction center protein ycf12 (From Topology)	T: Photosystem II reaction center protein ycf12	F: PSII_Ycf12	ECOD (1.6)
LA [auth BX]	PsbX	e4v62BX1	A: extended segments	X: Photosystem II PsbX protein (From Topology)	H: Photosystem II PsbX protein (From Topology)	T: Photosystem II PsbX protein	F: PsbX	ECOD (1.6)
R [auth AX]	PsbX	e4v62AX1	A: extended segments	X: Photosystem II PsbX protein (From Topology)	H: Photosystem II PsbX protein (From Topology)	T: Photosystem II PsbX protein	F: PsbX	ECOD (1.6)
NA [auth BZ]	Ycf9	e4v62BZ1	A: extended segments	X: PsbZ-like (From Topology)	H: PsbZ-like (From Topology)	T: PsbZ-like	F: Ycf9	ECOD (1.6)
T [auth AZ]	Ycf9	e4v62AZ1	A: extended segments	X: PsbZ-like (From Topology)	H: PsbZ-like (From Topology)	T: PsbZ-like	F: Ycf9	ECOD (1.6)
DA [auth BK]	PsbK	e4v62BK1	A: extended segments	X: Photosystem II reaction center protein K, PsbK (From Topology)	H: Photosystem II reaction center protein K, PsbK (From Topology)	T: Photosystem II reaction center protein K, PsbK	F: PsbK	ECOD (1.6)
J [auth AK]	PsbK	e4v62AK1	A: extended segments	X: Photosystem II reaction center protein K, PsbK (From Topology)	H: Photosystem II reaction center protein K, PsbK (From Topology)	T: Photosystem II reaction center protein K, PsbK	F: PsbK	ECOD (1.6)
CA [auth BJ]	PsbJ	e4v62BJ1	A: extended segments	X: Photosystem II reaction center protein J, PsbJ (From Topology)	H: Photosystem II reaction center protein J, PsbJ (From Topology)	T: Photosystem II reaction center protein J, PsbJ	F: PsbJ	ECOD (1.6)
I [auth AJ]	PsbJ	e4v62AJ1	A: extended segments	X: Photosystem II reaction center protein J, PsbJ (From Topology)	H: Photosystem II reaction center protein J, PsbJ (From Topology)	T: Photosystem II reaction center protein J, PsbJ	F: PsbJ	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth AA], U [auth BA]	PF00124	Photosynthetic reaction centre protein (Photo_RC)	Photosynthetic reaction centre protein	-	Family
C [auth AC], W [auth BC]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
D [auth AD], X [auth BD]	PF00124	Photosynthetic reaction centre protein (Photo_RC)	Photosynthetic reaction centre protein	-	Family
E [auth AE], Y [auth BE]	PF00283	Cytochrome b559, alpha (gene psbE) and beta (gene psbF)subunits (Cytochrom_B559)	Cytochrome b559, alpha (gene psbE) and beta (gene psbF)subunits	-	Family
E [auth AE], Y [auth BE]	PF00284	Lumenal portion of Cytochrome b559, alpha (gene psbE) subunit (Cytochrom_B559a)	Lumenal portion of Cytochrome b559, alpha (gene psbE) subunit	-	Family
AA [auth BH], G [auth AH]	PF00737	Photosystem II 10 kDa phosphoprotein (PsbH)	Photosystem II 10 kDa phosphoprotein	-	Family
BA [auth BI], H [auth AI]	PF02532	Photosystem II reaction centre I protein (PSII 4.8 kDa protein) (PsbI)	Photosystem II reaction centre I protein (PSII 4.8 kDa protein)	-	Family
EA [auth BL], K [auth AL]	PF02419	PsbL protein (PsbL)	PsbL protein	-	Family
FA [auth BM], L [auth AM]	PF05151	Photosystem II reaction centre M protein (PsbM) (PsbM)	Photosystem II reaction centre M protein (PsbM)	-	Family
HA [auth BT], N [auth AT]	PF01405	Photosystem II reaction centre T protein (PsbT)	Photosystem II reaction centre T protein	-	Family
IA [auth BU], O [auth AU]	PF06514	Photosystem II 12 kDa extrinsic protein (PsbU) (PsbU)	Photosystem II 12 kDa extrinsic protein (PsbU)	-	Family
JA [auth BV], P [auth AV]	PF14495	Cytochrome c-550 domain (Cytochrom_C550)	Cytochrome c-550 domain	This domain is a heme binding cytochrome known as cytochrome c550, or cytochrome c549, or PsbV [1].	Domain
LA [auth BX], R [auth AX]	PF06596	Photosystem II reaction centre X protein (PsbX) (PsbX)	Photosystem II reaction centre X protein (PsbX)	-	Family
NA [auth BZ], T [auth AZ]	PF01737	YCF9 (Ycf9)	YCF9	-	Family
DA [auth BK], J [auth AK]	PF02533	Photosystem II 4 kDa reaction centre component (PsbK)	Photosystem II 4 kDa reaction centre component	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth AA], U [auth BA]	Photosystem Q(B) protein	oxidoreductase activity oxygen evolving activity catalytic activity chlorophyll binding binding tetrapyrrole binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor oxidoreductase activity, acting on diphenols and related substances as donors oxidoreductase activity oxygen evolving activity catalytic activity chlorophyll binding binding tetrapyrrole binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor oxidoreductase activity, acting on diphenols and related substances as donors electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity	response to stimulus response to chemical response to stress response to herbicide response to toxic substance photosynthesis photosynthesis, light reaction photosynthetic electron transport chain electron transport chain photosynthetic electron transport in photosystem II metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
B [auth AB], V [auth BB]	Photosystem II core light harvesting protein	electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity chlorophyll binding binding tetrapyrrole binding	photosynthesis photosynthesis, light reaction photosynthetic electron transport chain electron transport chain photosynthetic electron transport in photosystem II metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
C [auth AC], W [auth BC]	Photosystem II CP43 protein	electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity chlorophyll binding binding tetrapyrrole binding cation binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction photosynthetic electron transport chain electron transport chain photosynthetic electron transport in photosystem II metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
D [auth AD], X [auth BD]	Photosystem II reaction center D2 protein	electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity oxidoreductase activity oxygen evolving activity catalytic activity chlorophyll binding binding tetrapyrrole binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction photosynthetic electron transport chain electron transport chain photosynthetic electron transport in photosystem II metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
E [auth AE], Y [auth BE]	Cytochrome b559 subunit alpha	binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction photosynthetic electron transport chain electron transport chain metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
F [auth AF], Z [auth BF]	Cytochrome b559 subunit beta	binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction photosynthetic electron transport chain electron transport chain metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
AA [auth BH], G [auth AH]	Photosystem II reaction center protein H	ion binding binding anion binding phosphate ion binding small molecule binding	regulation of protein stability biological regulation regulation of biological quality protein stabilization photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
BA [auth BI], H [auth AI]	Photosystem II reaction center protein I	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
EA [auth BL], K [auth AL]	Photosystem II reaction center protein L	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
FA [auth BM], L [auth AM]	Photosystem II reaction center protein M	-	photosynthesis photosynthesis, light reaction metabolic process cellular process generation of precursor metabolites and energy	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
GA [auth BO], M [auth AO]	Photosystem II manganese-stabilizing polypeptide	oxidoreductase activity oxygen evolving activity catalytic activity	photosynthesis protein-containing complex organization photosynthesis, light reaction generation of precursor metabolites and energy photosystem II assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex assembly cellular process metabolic process cellular component organization or biogenesis regulation of biological process regulation of cellular process photosynthesis protein-containing complex organization photosynthesis, light reaction generation of precursor metabolites and energy photosystem II assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex assembly cellular process metabolic process cellular component organization or biogenesis regulation of biological process regulation of cellular process regulation of photosynthesis photosystem II stabilization regulation of photosynthesis, light reaction biological regulation regulation of generation of precursor metabolites and energy regulation of metabolic process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid protein-containing complex photosystem catalytic complex photosystem II membrane protein complex photosystem II oxygen evolving complex oxidoreductase complex
HA [auth BT], N [auth AT]	Photosystem II reaction center protein T	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
IA [auth BU], O [auth AU]	Photosystem II 12 kDa extrinsic protein	-	photosynthesis metabolic process cellular process regulation of biological process regulation of cellular process regulation of photosynthesis photosynthesis, light reaction photosystem II stabilization regulation of photosynthesis, light reaction biological regulation regulation of generation of precursor metabolites and energy generation of precursor metabolites and energy regulation of metabolic process	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid extrinsic component of membrane protein-containing complex photosystem catalytic complex photosystem II membrane protein complex photosystem II oxygen evolving complex oxidoreductase complex
JA [auth BV], P [auth AV]	Cytochrome c-550	binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding	photosynthesis photosynthesis, light reaction metabolic process cellular process generation of precursor metabolites and energy cellular respiration energy derivation by oxidation of organic compounds respiratory electron transport chain electron transport chain	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
KA [auth By], Q [auth Ay]	Protein ycf12	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
LA [auth BX], R [auth AX]	Photosystem II PsbX protein	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
MA [auth BY], S [auth AY]	Photosystem II protein Y	-	-	-
NA [auth BZ], T [auth AZ]	Photosystem II reaction center protein Z	-	photosynthesis metabolic process cellular process regulation of biological process regulation of cellular process regulation of photosynthesis photosynthesis, light reaction photosystem II stabilization regulation of photosynthesis, light reaction biological regulation regulation of generation of precursor metabolites and energy generation of precursor metabolites and energy regulation of metabolic process	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
DA [auth BK], J [auth AK]	Photosystem II reaction center protein K	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm
CA [auth BJ], I [auth AJ]	Photosystem II reaction center protein J	-	photosynthesis metabolic process cellular process	protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid protein-containing complex photosystem intracellular anatomical structure photosystem II membrane membrane protein complex intracellular membraneless organelle photosystem II reaction center intracellular organelle cellular anatomical structure organelle membraneless organelle photosynthetic membrane thylakoid plasma membrane-derived chromatophore membrane plasma membrane plasma membrane-derived chromatophore thylakoid membrane cell periphery plasma membrane-derived thylakoid membrane plasma membrane region bacterial thylakoid cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth AA], U [auth BA]	IPR036854	Photosystem II protein D1/D2 superfamily	Homologous Superfamily
A [auth AA], U [auth BA]	IPR005867	Photosystem II protein D1	Family
A [auth AA], U [auth BA]	IPR000484	Photosynthetic reaction centre, L/M	Family
A [auth AA], U [auth BA]	IPR055265	Photosynthetic reaction centre, L/M, conserved site	Conserved Site
A [auth AA], U [auth BA]	IPR055266	Photosystem II protein D1/D2	Family
B [auth AB], V [auth BB]	IPR036001	Photosystem antenna protein-like superfamily	Homologous Superfamily
B [auth AB], V [auth BB]	IPR000932	Photosystem antenna protein-like	Family
B [auth AB], V [auth BB]	IPR017486	Photosystem II CP47 reaction centre protein	Family
C [auth AC], W [auth BC]	IPR036001	Photosystem antenna protein-like superfamily	Homologous Superfamily
C [auth AC], W [auth BC]	IPR000932	Photosystem antenna protein-like	Family
C [auth AC], W [auth BC]	IPR005869	Photosystem II CP43 reaction centre protein	Family
C [auth AC], W [auth BC]	IPR044900	Photosystem II CP43 reaction centre protein superfamily	Homologous Superfamily
D [auth AD], X [auth BD]	IPR005868	Photosystem II D2	Family
D [auth AD], X [auth BD]	IPR036854	Photosystem II protein D1/D2 superfamily	Homologous Superfamily
D [auth AD], X [auth BD]	IPR000484	Photosynthetic reaction centre, L/M	Family
D [auth AD], X [auth BD]	IPR055265	Photosynthetic reaction centre, L/M, conserved site	Conserved Site
D [auth AD], X [auth BD]	IPR055266	Photosystem II protein D1/D2	Family
E [auth AE], Y [auth BE]	IPR013081	Photosystem II cytochrome b559, N-terminal	Domain
E [auth AE], Y [auth BE]	IPR006217	Photosystem II cytochrome b559, alpha subunit	Family
E [auth AE], Y [auth BE]	IPR013082	Photosystem II cytochrome b559, alpha subunit, lumenal region	Domain
E [auth AE], Y [auth BE]	IPR037025	Photosystem II cytochrome b559, alpha subunit superfamily	Homologous Superfamily
E [auth AE], Y [auth BE]	IPR006216	Photosystem II cytochrome b559, conserved site	Conserved Site
F [auth AF], Z [auth BF]	IPR006241	Photosystem II cytochrome b559, beta subunit	Family
F [auth AF], Z [auth BF]	IPR013081	Photosystem II cytochrome b559, N-terminal	Domain
F [auth AF], Z [auth BF]	IPR006216	Photosystem II cytochrome b559, conserved site	Conserved Site
AA [auth BH], G [auth AH]	IPR036863	Photosystem II reaction centre protein H superfamily	Homologous Superfamily
AA [auth BH], G [auth AH]	IPR001056	Photosystem II reaction centre protein H	Family
BA [auth BI], H [auth AI]	IPR037271	Photosystem II PsbI superfamily	Homologous Superfamily
BA [auth BI], H [auth AI]	IPR003686	Photosystem II PsbI	Family
EA [auth BL], K [auth AL]	IPR003372	Photosystem II PsbL	Family
EA [auth BL], K [auth AL]	IPR037266	Photosystem II PsbL superfamily	Homologous Superfamily
FA [auth BM], L [auth AM]	IPR007826	Photosystem II PsbM	Family
FA [auth BM], L [auth AM]	IPR037269	Photosystem II PsbM superfamily	Homologous Superfamily
GA [auth BO], M [auth AO]	IPR011250	Outer membrane protein/outer membrane enzyme PagP, beta-barrel	Homologous Superfamily
GA [auth BO], M [auth AO]	IPR002628	Photosystem II extrinsic protein O	Family
HA [auth BT], N [auth AT]	IPR001743	Photosystem II PsbT	Family
HA [auth BT], N [auth AT]	IPR037268	Photosystem II PsbT superfamily	Homologous Superfamily
IA [auth BU], O [auth AU]	IPR010527	Photosystem II PsbU, oxygen evolving complex	Family
JA [auth BV], P [auth AV]	IPR017851	Photosystem II extrinsic protein V, cytochrome c-550 precursor	Family
JA [auth BV], P [auth AV]	IPR016003	Photosystem II extrinsic protein V, cytochrome c-550 precursor-like	Family
JA [auth BV], P [auth AV]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
JA [auth BV], P [auth AV]	IPR009056	Cytochrome c-like domain	Domain
JA [auth BV], P [auth AV]	IPR029490	Cytochrome c-550 domain	Domain
KA [auth By], Q [auth Ay]	IPR010284	Photosystem II reaction center protein Ycf12	Family
LA [auth BX], R [auth AX]	IPR009518	Photosystem II PsbX	Family
LA [auth BX], R [auth AX]	IPR023431	Photosystem II PsbX, type 1 subfamily	Family
NA [auth BZ], T [auth AZ]	IPR036512	Photosystem II PsbZ superfamily	Homologous Superfamily
NA [auth BZ], T [auth AZ]	IPR002644	Photosystem II PsbZ, reaction centre	Family
DA [auth BK], J [auth AK]	IPR037270	Photosystem II PsbK superfamily	Homologous Superfamily
DA [auth BK], J [auth AK]	IPR003687	Photosystem II PsbK	Family
CA [auth BJ], I [auth AJ]	IPR002682	Photosystem II PsbJ	Family
CA [auth BJ], I [auth AJ]	IPR037267	Photosystem II PsbJ superfamily	Homologous Superfamily