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SummaryStructural detailsExperimental detailsFunctional detailsSequence NeighborHistoryDownloads

7D1T

Cryo-EM Structure of PSII at 1.95 angstrom resolution

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, U
(A, a)		Photosystem II protein D1polymer33437029.22UniProt (P51765)Thermosynechococcus vulcanusPSII D1 protein,Photosystem II Q(B) protein
2B, V
(B, b)		Photosystem II CP47 reaction center proteinpolymer50556068.72UniProt (D0VWR1)Thermosynechococcus vulcanusPSII 47 kDa protein,Protein CP-47
3C, W
(C, c)		Photosystem II CP43 reaction center proteinpolymer45149207.32UniProt (D0VWR7)Thermosynechococcus vulcanusPSII 43 kDa protein,Protein CP-43
4D, X
(D, d)		Photosystem II D2 proteinpolymer34238419.92UniProt (D0VWR8)Thermosynechococcus vulcanusPSII D2 protein,Photosystem Q(A) protein
5E, Y
(E, e)		Cytochrome b559 subunit alphapolymer819321.52UniProt (P12238)Thermosynechococcus vulcanusPSII reaction center subunit V
6F, Z
(F, f)		Cytochrome b559 subunit betapolymer343868.62UniProt (P12239)Thermosynechococcus vulcanusPSII reaction center subunit VI
7AA, G
(H, h)		Photosystem II reaction center protein Hpolymer637057.32UniProt (P19052)Thermosynechococcus vulcanusPSII-H
8BA, H
(I, i)		Photosystem II reaction center protein Ipolymer364196.02UniProt (P12240)Thermosynechococcus vulcanusPSII-I,PSII 4.4 kDa protein
9CA, I
(J, j)		Photosystem II reaction center protein Jpolymer373756.42UniProt (Q7DGD4)Thermosynechococcus vulcanusPSII-J
10DA, J
(K, k)		Photosystem II reaction center protein Kpolymer374101.92UniProt (P19054)Thermosynechococcus vulcanusPSII-K
11EA, K
(L, l)		Photosystem II reaction center protein Lpolymer374299.02UniProt (P12241)Thermosynechococcus vulcanusPSII-L
12FA, L
(M, m)		Photosystem II reaction center protein Mpolymer343835.52UniProt (P12312)Thermosynechococcus vulcanusPSII-M
13GA, M
(O, o)		Photosystem II manganese-stabilizing polypeptidepolymer24426651.72UniProt (D0VWR2)Thermosynechococcus vulcanusMSP,Extrinsic protein O of oxygen-evolving complex
14HA, N
(T, t)		Photosystem II reaction center protein Tpolymer313777.62UniProt (P12313)Thermosynechococcus vulcanusPSII-Tc
15IA, O
(U, u)		Photosystem II 12 kDa extrinsic proteinpolymer9710966.32UniProt (P56152)Thermosynechococcus vulcanusPS II complex 12 kDa extrinsic protein,PSII-U,Extrinsic protein U of oxygen-evolving complex
16JA, P
(V, v)		Cytochrome c-550polymer13715148.32UniProt (P0A387)Thermosynechococcus vulcanusCytochrome c550,Low-potential cytochrome c,Extrinsic protein V of oxygen-evolving complex
17KA, Q
(Y, y)		Photosystem II reaction center protein Ycf12polymer303228.02UniProt (D0VWR3)Thermosynechococcus vulcanus
18LA, R
(X, x)		Photosystem II reaction center protein Xpolymer404191.02UniProt (D0VWR4)Thermosynechococcus vulcanus
19MA, S
(Z, z)		Photosystem II reaction center protein Zpolymer626766.22UniProt (D0VWR5)Thermosynechococcus vulcanusPSII-Z
20NA, T
(R, r)		Photosystem II protein Ypolymer343859.72UniProt (P0DM37)Thermosynechococcus vulcanus
21JE, OA
(a, A)		CA-MN4-O5 CLUSTERnon-polymer339.82Chemie (OEX)
22KE, PA
(a, A)		FE (II) IONnon-polymer55.82Chemie (FE2)
PubChem (27284)
23LE, ME, QA, RA
(a, A)		CHLORIDE IONnon-polymer35.54Chemie (CL)
PubChem (312)
24AD, AF, AG, BF, BG...
(D, b, c, B, C...)		CHLOROPHYLL Anon-polymer893.570Chemie (CLA)
25BD, PE, UA, VG
(D, a, A, d)		PHEOPHYTIN Anon-polymer871.24Chemie (PHO)
26DE, FD, KG, LG, PF...
(T, D, c, b, C...)		BETA-CAROTENEnon-polymer536.920Chemie (BCR)
PubChem (573)
PubChem (5315709)
PubChem (5353436)
PubChem (5356616)
PubChem (5927371)
PubChem (6477957)
PubChem (9828626)
PubChem (10256668)
PubChem (12305639)
PubChem (12305640)
PubChem (12305642)
PubChem (12305644)
PubChem (12305647)
PubChem (12305652)
PubChem (21672398)
PubChem (176490061)
PubChem (177696266)
PubChem (46783370)
PubChem (46846294)
PubChem (5280489)
PubChem (92863345)
PubChem (54603957)
PubChem (54612003)
PubChem (124919640)
PubChem (146673260)
PubChem (152743364)
PubChem (160505766)
PubChem (86765360)
PubChem (91827292)
PubChem (92863346)
PubChem (92863347)
PubChem (92863348)
PubChem (100990628)
PubChem (101525094)
PubChem (101525095)
PubChem (124919639)
PubChem (129651951)
PubChem (132274419)
PubChem (145925599)
PubChem (159562859)
PubChem (172654026)
PubChem (172878405)
PubChem (173398668)
27AE, KH, QD, SE, UE...
(L, f, F, a, B...)		1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROLnon-polymer795.18Chemie (SQD)
PubChem (5459390)
PubChem (9810997)
PubChem (9918745)
PubChem (10219110)
PubChem (10373133)
PubChem (14463145)
PubChem (25147486)
PubChem (25235342)
PubChem (42607399)
PubChem (159321)
PubChem (481096)
PubChem (134765349)
PubChem (102201395)
28AH, GD, TE, YA
(d, D, a, A)		2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONEnon-polymer749.24Chemie (PL9)
PubChem (20286)
PubChem (5375177)
PubChem (6323474)
PubChem (6325820)
PubChem (6433402)
PubChem (23304240)
PubChem (21881166)
29AB, AC, AI, BB, BC...
(A, B, x, M, T...)		UNKNOWN LIGANDnon-polymer36Chemie (UNL)
30CC, EH, KD, PG, SF...
(C, d, D, c, b...)		1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDEnon-polymer787.210Chemie (LMG)
31LH, MG, NG, OG, RD...
(h, c, H, C)		DIGALACTOSYL DIACYL GLYCEROL (DGDG)non-polymer949.38Chemie (DGD)
PubChem (448441)
PubChem (24865462)
PubChem (24865463)
PubChem (46936671)
PubChem (50904896)
PubChem (447899)
PubChem (4629344)
PubChem (53480668)
PubChem (15991538)
PubChem (154573294)
PubChem (171123158)
PubChem (134746152)
PubChem (140529801)
32BE, BI, IE, PH, QG...
(M, z, Z, j, c...)		DODECYL-BETA-D-MALTOSIDEnon-polymer510.68Chemie (LMT)
33CD, WG
(D, d)		BICARBONATE IONnon-polymer61.02Chemie (BCT)
PubChem (769)
34BH, CH, DH, HD, HH...
(d, D, e, E, l...)		1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLEnon-polymer723.010Chemie (LHG)
PubChem (446440)
PubChem (9547104)
PubChem (11846227)
PubChem (46936292)
PubChem (65144)
PubChem (13305396)
PubChem (73416066)
PubChem (138986743)
35JH, PD
(e, E)		PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.52Chemie (HEM)
36OH, UD
(j, J)		MAGNESIUM IONnon-polymer24.32Chemie (MG)
PubChem (888)
37FE, YH
(V, v)		HEME Cnon-polymer618.52Chemie (HEC)
38GE, ZH
(X, x)		(3R)-beta,beta-caroten-3-olnon-polymer552.92Chemie (RRX)
PubChem (92111)
PubChem (182237)
PubChem (5316150)
PubChem (6384256)
PubChem (20056910)
PubChem (177443103)
PubChem (44554791)
PubChem (91496173)
PubChem (5281235)
PubChem (124934401)
PubChem (101088204)
PubChem (102330248)
PubChem (102330249)
PubChem (102330250)
PubChem (124934402)
PubChem (124934403)
PubChem (124934404)
PubChem (152743353)
PubChem (163007083)
PubChem (163007084)
PubChem (168433814)
PubChem (169423484)
39AJ, BJ, CI, CJ, DI...
(h, i, A, j, B...)		waterwater18.02432Chemie (HOH)
Sequence modifications
A, a: 11 - 344 (UniProt: P51765)
PDBExternal DatabaseDetails
Pro 279Arg 279conflict
K, k: 10 - 46 (UniProt: P19054)
PDBExternal DatabaseDetails
Leu 33Phe 24conflict
Trp 39Val 30conflict
M, m: 1 - 34 (UniProt: P12312)
PDBExternal DatabaseDetails
Leu 8Phe 8conflict
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains40
Total formula weight591500.7
Non-Polymers*Number of molecules196
Total formula weight117584.3
All*Total formula weight709085.1
*Water molecules are not included.

251801

PDB entries from 2026-04-08

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