4PJ0

Structure of T.elongatus Photosystem II, rows of dimers crystal packing

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
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: PDBTM
Membrane Protein Annotation: MemProtMD

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4pj0a_	Membrane and cell surface proteins and peptides	Bacterial photosystem II reaction centre, L and M subunits	Bacterial photosystem II reaction centre, L and M subunits	Bacterial photosystem II reaction centre, L and M subunits	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
B	d4pj0b_	Membrane and cell surface proteins and peptides	Photosystem II antenna protein-like	Photosystem II antenna protein-like	Photosystem II antenna protein-like	Photosystem II core light harvesting protein PsbB	(Thermosynechococcus vestitus ) [TaxId: 146786 ],	SCOPe (2.08)
C	d4pj0c_	Membrane and cell surface proteins and peptides	Photosystem II antenna protein-like	Photosystem II antenna protein-like	Photosystem II antenna protein-like	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
D	d4pj0d_	Membrane and cell surface proteins and peptides	Bacterial photosystem II reaction centre, L and M subunits	Bacterial photosystem II reaction centre, L and M subunits	Bacterial photosystem II reaction centre, L and M subunits	Photosystem II reaction center d2 protein PsbD2	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
F	d4pj0f_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Cytochrome b559 subunits	Cytochrome b559 subunits	Cytochrome b559 subunit beta, PsbF	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
G [auth H]	d4pj0h_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Photosystem II 10 kDa phosphoprotein PsbH	PsbH-like	Photosystem II reaction center protein H, PsbH	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
H [auth I]	d4pj0i_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Photosystem II reaction center protein I, PsbI	PsbI-like	Photosystem II reaction center protein I, PsbI	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
I [auth J]	d4pj0j_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Photosystem II reaction center protein J, PsbJ	PsbJ-like	Photosystem II reaction center protein J, PsbJ	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
J [auth K]	d4pj0k_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Photosystem II reaction center protein K, PsbK	PsbK-like	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
K [auth L]	d4pj0l_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Photosystem II reaction center protein L, PsbL	PsbL-like	Photosystem II reaction center protein L, PsbL	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
L [auth M]	d4pj0m_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Photosystem II reaction center protein M, PsbM	PsbM-like	Photosystem II reaction center protein M, PsbM	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
M [auth O]	d4pj0o_	Membrane and cell surface proteins and peptides	Transmembrane beta-barrels	OMPA-like	PsbO-like	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
N [auth T]	d4pj0t_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Photosystem II reaction center protein T, PsbT	PsbT-like	Photosystem II reaction center protein T, PsbT	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
O [auth U]	d4pj0u_	All alpha proteins	SAM domain-like	PsbU/PolX domain-like	PsbU-like	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
P [auth V]	d4pj0v_	All alpha proteins	Cytochrome c	Cytochrome c	monodomain cytochrome c	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
R [auth X]	d4pj0x_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Photosystem II reaction center protein X, PsbX	PsbX-like	automated matches	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
S [auth Z]	d4pj0z_	Membrane and cell surface proteins and peptides	Transmembrane helix hairpin	PsbZ-like	PsbZ-like	Photosystem II reaction center protein Z, PsbZ	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)
E	d4pj0e_	Membrane and cell surface proteins and peptides	Single transmembrane helix	Cytochrome b559 subunits	Cytochrome b559 subunits	Cytochrome b559 subunit alpha, PsbE	(Thermosynechococcus vestitus BP-1 ) [TaxId: 197221 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8032741	3000736	SCOP2B (2022-06-29)
T [auth a]	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8032741	3000736	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Photosystem II antenna protein-like	8032743	3001674	SCOP2B (2022-06-29)
U [auth b]	SCOP2B Superfamily	Photosystem II antenna protein-like	8032743	3001674	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Photosystem II antenna protein-like	8032746	3001674	SCOP2B (2022-06-29)
V [auth c]	SCOP2B Superfamily	Photosystem II antenna protein-like	8032746	3001674	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8032750	3000736	SCOP2B (2022-06-29)
W [auth d]	SCOP2B Superfamily	Bacterial photosystem II reaction centre, L and M subunits	8032750	3000736	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Cytochrome b559 subunits	8032752	3001602	SCOP2B (2022-06-29)
Y [auth f]	SCOP2B Superfamily	Cytochrome b559 subunits	8032752	3001602	SCOP2B (2022-06-29)
G [auth H]	SCOP2B Superfamily	Photosystem II 10 kDa phosphoprotein PsbH	8032753	3001547	SCOP2B (2022-06-29)
Z [auth h]	SCOP2B Superfamily	Photosystem II 10 kDa phosphoprotein PsbH	8032753	3001547	SCOP2B (2022-06-29)
AA [auth i]	SCOP2B Superfamily	Photosystem II reaction center protein I, PsbI	8032754	3001590	SCOP2B (2022-06-29)
H [auth I]	SCOP2B Superfamily	Photosystem II reaction center protein I, PsbI	8032754	3001590	SCOP2B (2022-06-29)
BA [auth j]	SCOP2B Superfamily	Photosystem II reaction center protein J, PsbJ	8032755	3001534	SCOP2B (2022-06-29)
I [auth J]	SCOP2B Superfamily	Photosystem II reaction center protein J, PsbJ	8032755	3001534	SCOP2B (2022-06-29)
CA [auth k]	SCOP2B Superfamily	Photosystem II reaction center protein K, PsbK	8032757	3001585	SCOP2B (2022-06-29)
J [auth K]	SCOP2B Superfamily	Photosystem II reaction center protein K, PsbK	8032757	3001585	SCOP2B (2022-06-29)
DA [auth l]	SCOP2B Superfamily	Photosystem II reaction center protein L, PsbL	8032759	3001523	SCOP2B (2022-06-29)
K [auth L]	SCOP2B Superfamily	Photosystem II reaction center protein L, PsbL	8032759	3001523	SCOP2B (2022-06-29)
L [auth M]	SCOP2B Superfamily	Photosystem II reaction center protein M, PsbM	8032762	3001573	SCOP2B (2022-06-29)
EA [auth m]	SCOP2B Superfamily	Photosystem II reaction center protein M, PsbM	8032762	3001573	SCOP2B (2022-06-29)
FA [auth o]	SCOP2B Superfamily	OMPA barrel-like	8032765	3000208	SCOP2B (2022-06-29)
M [auth O]	SCOP2B Superfamily	OMPA barrel-like	8032765	3000208	SCOP2B (2022-06-29)
GA [auth t]	SCOP2B Superfamily	Photosystem II reaction center protein T, PsbT	8032769	3001561	SCOP2B (2022-06-29)
N [auth T]	SCOP2B Superfamily	Photosystem II reaction center protein T, PsbT	8032769	3001561	SCOP2B (2022-06-29)
O [auth U]	SCOP2B Superfamily	PsbU/PolX domain-like	8032768	3000893	SCOP2B (2022-06-29)
HA [auth u]	SCOP2B Superfamily	PsbU/PolX domain-like	8032768	3000893	SCOP2B (2022-06-29)
IA [auth v]	SCOP2B Superfamily	Cytochrome c	8036565	3000815	SCOP2B (2022-06-29)
P [auth V]	SCOP2B Superfamily	Cytochrome c	8036565	3000815	SCOP2B (2022-06-29)
MA [auth y]	SCOP2B Superfamily	Photosystem II reaction center protein Ycf12	8093136	3002680	SCOP2B (2022-06-29)
Q [auth Y]	SCOP2B Superfamily	Photosystem II reaction center protein Ycf12	8093136	3002680	SCOP2B (2022-06-29)
S [auth Z]	SCOP2B Superfamily	PsbZ-like	8032770	3001624	SCOP2B (2022-06-29)
NA [auth z]	SCOP2B Superfamily	PsbZ-like	8032770	3001624	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Cytochrome b559 subunits	8032749	3001602	SCOP2B (2022-06-29)
X [auth e]	SCOP2B Superfamily	Cytochrome b559 subunits	8032749	3001602	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	Photo_RC	e4pj0A1	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)
T [auth a]	Photo_RC	e4pj0a1	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	PSII_1st	e4pj0B1	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	PSII_2nd	e4pj0B2	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)
U [auth b]	PSII_1st	e4pj0b2	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)
U [auth b]	PSII_2nd	e4pj0b1	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	PSII_1st	e4pj0C1	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 c]	PSII_1st	e4pj0c1	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	Photo_RC	e4pj0D1	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)
W [auth d]	Photo_RC	e4pj0d1	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)
F	Cytochrom_B559	e4pj0F1	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)
Y [auth f]	Cytochrom_B559	e4pj0f1	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)
G [auth H]	PsbH	e4pj0H1	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)
Z [auth h]	PsbH	e4pj0h1	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)
AA [auth i]	PsbI	e4pj0i1	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 I]	PsbI	e4pj0I1	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)
BA [auth j]	PsbJ	e4pj0j1	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 J]	PsbJ	e4pj0J1	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)
CA [auth k]	PsbK	e4pj0k1	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 K]	PsbK	e4pj0K1	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)
DA [auth l]	PsbL	e4pj0l1	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 L]	PsbL	e4pj0L1	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)
L [auth M]	PsbM	e4pj0M1	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)
EA [auth m]	PsbM	e4pj0m1	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)
FA [auth o]	MSP	e4pj0o1	A: beta barrels	X: Outer membrane meander beta-barrels	H: OMPA-like (From Topology)	T: OMPA-like	F: MSP	ECOD (1.6)
M [auth O]	MSP	e4pj0O1	A: beta barrels	X: Outer membrane meander beta-barrels	H: OMPA-like (From Topology)	T: OMPA-like	F: MSP	ECOD (1.6)
GA [auth t]	PsbT	e4pj0t1	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 T]	PsbT	e4pj0T1	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)
O [auth U]	PsbU	e4pj0U1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: PsbU	ECOD (1.6)
HA [auth u]	PsbU	e4pj0u1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: PsbU	ECOD (1.6)
IA [auth v]	Cytochrom_C550	e4pj0v1	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C550	ECOD (1.6)
P [auth V]	Cytochrom_C550	e4pj0V1	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C550	ECOD (1.6)
MA [auth y]	PSII_Ycf12	e4pj0y1	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 Y]	PSII_Ycf12	e4pj0Y1	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)
JA [auth x]	PsbX	e4pj0x1	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 X]	PsbX	e4pj0X1	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)
S [auth Z]	Ycf9	e4pj0Z1	A: extended segments	X: PsbZ-like (From Topology)	H: PsbZ-like (From Topology)	T: PsbZ-like	F: Ycf9	ECOD (1.6)
NA [auth z]	Ycf9	e4pj0z1	A: extended segments	X: PsbZ-like (From Topology)	H: PsbZ-like (From Topology)	T: PsbZ-like	F: Ycf9	ECOD (1.6)
KA [auth R]	PsbY	e4pj0R1	A: extended segments	X: Photosystem II protein Y, psbY (From Topology)	H: Photosystem II protein Y, psbY (From Topology)	T: Photosystem II protein Y, psbY	F: PsbY	ECOD (1.6)
LA [auth r]	PsbY	e4pj0r1	A: extended segments	X: Photosystem II protein Y, psbY (From Topology)	H: Photosystem II protein Y, psbY (From Topology)	T: Photosystem II protein Y, psbY	F: PsbY	ECOD (1.6)
E	Cytochrom_B559a	e4pj0E1	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)
X [auth e]	Cytochrom_B559a	e4pj0e1	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)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.10.680.10	Alpha Beta	Roll	Photosystem II CP47 reaction center protein	Photosystem II CP47 reaction center protein	CATH (4.3.0)
U [auth b]	3.10.680.10	Alpha Beta	Roll	Photosystem II CP47 reaction center protein	Photosystem II CP47 reaction center protein	CATH (4.3.0)
C	1.10.10.670	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	photosystem ii from thermosynechococcus elongatus	CATH (4.3.0)
V [auth c]	1.10.10.670	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	photosystem ii from thermosynechococcus elongatus	CATH (4.3.0)
G [auth H]	1.20.5.880	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Photosystem II reaction center protein H	CATH (4.3.0)
Z [auth h]	1.20.5.880	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Photosystem II reaction center protein H	CATH (4.3.0)
FA [auth o]	2.40.160.30	Mainly Beta	Beta Barrel	Porin	Photosystem II, cytochrome c-550 precursor	CATH (4.3.0)
FA [auth o]	3.30.2050.10	Alpha Beta	2-Layer Sandwich	photosynthetic oxygen evolving center fold	photosynthetic oxygen evolving center domain	CATH (4.3.0)
M [auth O]	2.40.160.30	Mainly Beta	Beta Barrel	Porin	Photosystem II, cytochrome c-550 precursor	CATH (4.3.0)
M [auth O]	3.30.2050.10	Alpha Beta	2-Layer Sandwich	photosynthetic oxygen evolving center fold	photosynthetic oxygen evolving center domain	CATH (4.3.0)
O [auth U]	1.10.150.320	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
HA [auth u]	1.10.150.320	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
IA [auth v]	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
P [auth V]	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
S [auth Z]	1.10.287.740	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Photosystem II PsbZ, reaction centre	CATH (4.3.0)
NA [auth z]	1.10.287.740	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Photosystem II PsbZ, reaction centre	CATH (4.3.0)
E	1.20.5.860	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Photosystem II cytochrome b559, alpha subunit	CATH (4.3.0)
X [auth e]	1.20.5.860	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Photosystem II cytochrome b559, alpha subunit	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, T [auth a]	PF00124	Photosynthetic reaction centre protein (Photo_RC)	Photosynthetic reaction centre protein	-	Family
C, V [auth c]	PF00421	Photosystem II protein (PSII)	Photosystem II protein	-	Family
D, W [auth d]	PF00124	Photosynthetic reaction centre protein (Photo_RC)	Photosynthetic reaction centre protein	-	Family
G [auth H], Z [auth h]	PF00737	Photosystem II 10 kDa phosphoprotein (PsbH)	Photosystem II 10 kDa phosphoprotein	-	Family
AA [auth i], H [auth I]	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 m], L [auth M]	PF05151	Photosystem II reaction centre M protein (PsbM) (PsbM)	Photosystem II reaction centre M protein (PsbM)	-	Family
GA [auth t], N [auth T]	PF01405	Photosystem II reaction centre T protein (PsbT)	Photosystem II reaction centre T protein	-	Family
HA [auth u], O [auth U]	PF06514	Photosystem II 12 kDa extrinsic protein (PsbU) (PsbU)	Photosystem II 12 kDa extrinsic protein (PsbU)	-	Family
IA [auth v], P [auth V]	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
JA [auth x], R [auth X]	PF06596	Photosystem II reaction centre X protein (PsbX) (PsbX)	Photosystem II reaction centre X protein (PsbX)	-	Family
NA [auth z], S [auth Z]	PF01737	YCF9 (Ycf9)	YCF9	-	Family
E, X [auth e]	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, X [auth e]	PF00284	Lumenal portion of Cytochrome b559, alpha (gene psbE) subunit (Cytochrom_B559a)	Lumenal portion of Cytochrome b559, alpha (gene psbE) subunit	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, T [auth a]	Photosystem Q(B) protein 1	oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor oxidoreductase activity oxidoreductase activity, acting on diphenols and related substances as donors catalytic activity electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity oxygen evolving activity chlorophyll binding binding organic cyclic compound binding tetrapyrrole binding cation binding transition metal ion binding iron ion binding oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor oxidoreductase activity oxidoreductase activity, acting on diphenols and related substances as donors catalytic activity electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity oxygen evolving activity chlorophyll binding binding organic cyclic compound 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 response to stimulus response to chemical response to stress response to herbicide response to toxic substance	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, U [auth b]	CP47 protein	electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity chlorophyll binding binding organic cyclic compound 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, V [auth c]	Photosystem II CP43 protein	electron transfer activity electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity chlorophyll binding binding organic cyclic compound 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, W [auth d]	Photosystem II 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 organic cyclic compound binding tetrapyrrole binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding 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 organic cyclic compound 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
F, Y [auth f]	Cytochrome b559 subunit beta	binding organic cyclic compound 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
G [auth H], Z [auth h]	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
AA [auth i], H [auth I]	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
BA [auth j], I [auth J]	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
CA [auth k], J [auth K]	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
DA [auth l], K [auth L]	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
EA [auth m], L [auth M]	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
FA [auth o], M [auth O]	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
GA [auth t], N [auth T]	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
HA [auth u], O [auth U]	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
IA [auth v], P [auth V]	Cytochrome c-550	binding organic cyclic compound binding tetrapyrrole binding heme binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding electron transfer activity	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 cytochrome complex assembly protein-tetrapyrrole linkage protein-containing complex organization primary metabolic process cytochrome c-heme linkage 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 cytochrome complex assembly protein-tetrapyrrole linkage protein-containing complex organization primary metabolic process cytochrome c-heme linkage cellular component organization cellular component biogenesis cellular component assembly macromolecule modification protein-heme linkage protein-containing complex assembly protein metabolic process macromolecule metabolic process cellular component organization or biogenesis protein modification 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 y], Q [auth Y]	Photosystem II reaction center 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
JA [auth x], R [auth X]	Photosystem II reaction center X 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
NA [auth z], S [auth Z]	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
KA [auth R], LA [auth r]	Photosystem II protein Y	cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding	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
E, X [auth e]	Cytochrome b559 subunit alpha	binding organic cyclic compound 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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, T [auth a]	IPR005867	Photosystem II protein D1	Family
A, T [auth a]	IPR036854	Photosystem II protein D1/D2 superfamily	Homologous Superfamily
A, T [auth a]	IPR000484	Photosynthetic reaction centre, L/M	Family
B, U [auth b]	IPR036001	Photosystem antenna protein-like superfamily	Homologous Superfamily
B, U [auth b]	IPR000932	Photosystem antenna protein-like	Family
B, U [auth b]	IPR017486	Photosystem II CP47 reaction centre protein	Family
C, V [auth c]	IPR036001	Photosystem antenna protein-like superfamily	Homologous Superfamily
C, V [auth c]	IPR000932	Photosystem antenna protein-like	Family
C, V [auth c]	IPR005869	Photosystem II CP43 reaction centre protein	Family
C, V [auth c]	IPR044900	Photosystem II CP43 reaction centre protein superfamily	Homologous Superfamily
D, W [auth d]	IPR005868	Photosystem II D2	Family
D, W [auth d]	IPR036854	Photosystem II protein D1/D2 superfamily	Homologous Superfamily
D, W [auth d]	IPR000484	Photosynthetic reaction centre, L/M	Family
F, Y [auth f]	IPR006241	Photosystem II cytochrome b559, beta subunit	Family
F, Y [auth f]	IPR013081	Photosystem II cytochrome b559, N-terminal	Domain
F, Y [auth f]	IPR006216	Photosystem II cytochrome b559, conserved site	Conserved Site
G [auth H], Z [auth h]	IPR036863	Photosystem II reaction centre protein H superfamily	Homologous Superfamily
G [auth H], Z [auth h]	IPR001056	Photosystem II reaction centre protein H	Family
AA [auth i], H [auth I]	IPR037271	Photosystem II PsbI superfamily	Homologous Superfamily
AA [auth i], H [auth I]	IPR003686	Photosystem II PsbI	Family
BA [auth j], I [auth J]	IPR002682	Photosystem II PsbJ	Family
BA [auth j], I [auth J]	IPR037267	Photosystem II PsbJ superfamily	Homologous Superfamily
CA [auth k], J [auth K]	IPR037270	Photosystem II PsbK superfamily	Homologous Superfamily
CA [auth k], J [auth K]	IPR003687	Photosystem II PsbK	Family
DA [auth l], K [auth L]	IPR003372	Photosystem II PsbL	Family
DA [auth l], K [auth L]	IPR037266	Photosystem II PsbL superfamily	Homologous Superfamily
EA [auth m], L [auth M]	IPR007826	Photosystem II PsbM	Family
EA [auth m], L [auth M]	IPR037269	Photosystem II PsbM superfamily	Homologous Superfamily
FA [auth o], M [auth O]	IPR011250	Outer membrane protein/outer membrane enzyme PagP, beta-barrel	Homologous Superfamily
FA [auth o], M [auth O]	IPR002628	Photosystem II extrinsic protein O	Family
GA [auth t], N [auth T]	IPR001743	Photosystem II PsbT	Family
GA [auth t], N [auth T]	IPR037268	Photosystem II PsbT superfamily	Homologous Superfamily
HA [auth u], O [auth U]	IPR010527	Photosystem II PsbU, oxygen evolving complex	Family
IA [auth v], P [auth V]	IPR017851	Photosystem II extrinsic protein V, cytochrome c-550 precursor	Family
IA [auth v], P [auth V]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
IA [auth v], P [auth V]	IPR009056	Cytochrome c-like domain	Domain
IA [auth v], P [auth V]	IPR016003	Photosystem II extrinsic protein V, cytochrome c-550 precursor-like	Family
IA [auth v], P [auth V]	IPR029490	Cytochrome c-550 domain	Domain
MA [auth y], Q [auth Y]	IPR010284	Photosystem II reaction center protein Ycf12	Family
JA [auth x], R [auth X]	IPR009518	Photosystem II PsbX	Family
JA [auth x], R [auth X]	IPR023431	Photosystem II PsbX, type 1 subfamily	Family
NA [auth z], S [auth Z]	IPR036512	Photosystem II PsbZ superfamily	Homologous Superfamily
NA [auth z], S [auth Z]	IPR002644	Photosystem II PsbZ, reaction centre	Family
KA [auth R], LA [auth r]	IPR009388	Photosystem II PsbY	Family
E, X [auth e]	IPR013081	Photosystem II cytochrome b559, N-terminal	Domain
E, X [auth e]	IPR006217	Photosystem II cytochrome b559, alpha subunit	Family
E, X [auth e]	IPR013082	Photosystem II cytochrome b559, alpha subunit, lumenal region	Domain
E, X [auth e]	IPR037025	Photosystem II cytochrome b559, alpha subunit superfamily	Homologous Superfamily
E, X [auth e]	IPR006216	Photosystem II cytochrome b559, conserved site	Conserved Site

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, AA [auth i], B, BA [auth j], C A, AA [auth i], B, BA [auth j], C, CA [auth k], D, DA [auth l], E, EA [auth m], F, FA [auth o], G [auth H], GA [auth t], H [auth I], HA [auth u], I [auth J], IA [auth v], J [auth K], JA [auth x], K [auth L], KA [auth R], L [auth M], LA [auth r], M [auth O], MA [auth y], N [auth T], NA [auth z], O [auth U], P [auth V], Q [auth Y], R [auth X], S [auth Z], T [auth a], U [auth b], V [auth c], W [auth d], X [auth e], Y [auth f], Z [auth h]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, AA [auth i], B, BA [auth j], C A, AA [auth i], B, BA [auth j], C, CA [auth k], D, DA [auth l], E, EA [auth m], F, FA [auth o], G [auth H], GA [auth t], H [auth I], HA [auth u], I [auth J], IA [auth v], J [auth K], JA [auth x], K [auth L], KA [auth R], L [auth M], LA [auth r], M [auth O], MA [auth y], N [auth T], NA [auth z], O [auth U], P [auth V], Q [auth Y], R [auth X], S [auth Z], T [auth a], U [auth b], V [auth c], W [auth d], X [auth e], Y [auth f], Z [auth h]	MemProtMD	Annotated as membrane protein by MemProtMD