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6PNJ

Structure of Photosystem I Acclimated to Far-red Light

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, G, Y
(A, G, a)
Photosystem I P700 chlorophyll a apoprotein A1polymer78887627.93UniProt (G6FME9)
Pfam (PF00223)
Fischerella thermalis PCC 7521PsaA, photosystem I core protein PsaA
2B, H, Z
(B, H, b)
Photosystem I P700 chlorophyll a apoprotein A2polymer74183451.03UniProt (A0A2N6KXB6)
Pfam (PF00223)
UniProt (by SIFTS) (G6FMF0)
Fischerella thermalis PCC 7521PsaB, photosystem I core protein PsaB
3AA, C, N
(C, N, c)
Photosystem I iron-sulfur centerpolymer818853.23UniProt (G6FW50)
Pfam (PF12838)
Fischerella thermalis PCC 7521PSI-C, Photosystem I subunit VII, PsaC
4BA, D, O
(D, O, d)
Photosystem I protein PsaDpolymer15917776.33UniProt (G6FW99)
Pfam (PF02531)
Fischerella thermalis PCC 7521
5CA, E, P
(E, P, e)
Photosystem I reaction center subunit IVpolymer728070.13UniProt (G6FQU3)
Pfam (PF02427)
Fischerella thermalis PCC 7521
6DA, F, Q
(F, Q, f)
Photosystem I reaction center protein PsaF subunit IIIpolymer15917788.03UniProt (G6FMD3)
Pfam (PF02507)
Fischerella thermalis PCC 7521
7EA, I, R
(I, R, i)
photosystem I subunit VIIIpolymer677736.03UniProt (A0A2N6MR25)Fischerella thermalis PCC 7521
8FA, J, S
(J, S, j)
Photosystem I reaction centre subunit IX / PsaJpolymer485435.53UniProt (G6FMD2)
Pfam (PF01701)
Fischerella thermalis PCC 7521
9GA, K, T
(K, T, k)
photosystem I reaction center subunit PsaKpolymer393615.43UniProt (G6FV28)
Pfam (PF01241)
Fischerella thermalis PCC 7521
10HA, L, U
(L, U, l)
Photosystem I reaction center protein subunit XIpolymer17418543.23UniProt (A0A2N6M3Z9)
Pfam (PF02605)
UniProt (by SIFTS) (G6FMF1)
Fischerella thermalis PCC 7521
11IA, M, V
(M, V, m)
Photosystem I reaction center subunit XIIpolymer313471.13UniProt (G6FWT6)
Pfam (PF07465)
Fischerella thermalis PCC 7521PSI-M
12JA, W, X
(W, X, x)
Photosystem one PsaXpolymer10111132.83UniProt (G6FSH2)
Pfam (PF08078)
Fischerella thermalis PCC 7521
13KA, RE, YJ
(A, G, a)
CHLOROPHYLL A ISOMERnon-polymer893.53Chemie (CL0)
14AB, AD, AE, AF, AG...
(A, B, G, H, a...)
CHLOROPHYLL Anon-polymer893.5252Chemie (CLA)
15GB, GI, GN, HB, NF...
(A, H, b, G, B...)
Chlorophyll Fnon-polymer905.512Chemie (F6C)
16AC, CE, HG, JI, OL...
(A, B, G, H, a...)
PHYLLOQUINONEnon-polymer450.76Chemie (PQN)
PubChem (4812)
PubChem (21896458)
PubChem (57138572)
PubChem (5315258)
PubChem (7048753)
PubChem (7048755)
PubChem (9846607)
PubChem (92436622)
PubChem (93233163)
PubChem (93971968)
PubChem (5280483)
PubChem (5284607)
PubChem (7048754)
PubChem (133612476)
PubChem (162999945)
17BC, DO, EO, IG, IJ...
(A, c, G, N, C...)
IRON/SULFUR CLUSTERnon-polymer351.69Chemie (SF4)
18AO, CC, DC, DE, EC...
(b, A, B, L, i...)
BETA-CAROTENEnon-polymer536.963Chemie (BCR)
PubChem (573)
PubChem (21672398)
PubChem (176490061)
PubChem (177696266)
PubChem (46783370)
PubChem (46846294)
PubChem (54603957)
PubChem (54612003)
PubChem (5315709)
PubChem (5353436)
PubChem (5356616)
PubChem (5927371)
PubChem (86765360)
PubChem (6477957)
PubChem (9828626)
PubChem (91827292)
PubChem (10256668)
PubChem (92863346)
PubChem (92863347)
PubChem (92863348)
PubChem (12305639)
PubChem (12305640)
PubChem (12305642)
PubChem (12305644)
PubChem (12305647)
PubChem (12305652)
PubChem (5280489)
PubChem (92863345)
PubChem (100990628)
PubChem (101525094)
PubChem (101525095)
PubChem (124919640)
PubChem (124919639)
PubChem (129651951)
PubChem (132274419)
PubChem (146673260)
PubChem (152743364)
PubChem (160505766)
PubChem (145925599)
PubChem (159562859)
PubChem (172654026)
PubChem (172878405)
PubChem (173398668)
19CO, IC, OE, PG, VI...
(b, A, B, G, H...)
1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLEnon-polymer723.06Chemie (LHG)
PubChem (446440)
PubChem (46936292)
PubChem (73416066)
PubChem (65144)
PubChem (9547104)
PubChem (11846227)
PubChem (13305396)
PubChem (138986743)
20BO, GJ, HO, JC, MJ...
(b, L, i, A, R...)
1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDEnon-polymer787.212Chemie (LMG)
21KC, LC, RG, SG, YL...
(A, G, a)
DODECYL-BETA-D-MALTOSIDEnon-polymer510.66Chemie (LMT)
22AJ, JO, OJ
(L, l, U)
CALCIUM IONnon-polymer40.13Chemie (CA)
PubChem (271)
Sequence modifications
I, R, i: 2 - 67 (UniProt: A0A2N6MR25)
PDBExternal DatabaseDetails
Met 1-initiating methionine
K, T, k: 29 - 44 (PDB: 6PNJ)
K, T, k: 69 - 91 (UniProt: G6FV28)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains36
Total formula weight820501.9
Non-Polymers*Number of molecules372
Total formula weight295364.8
All*Total formula weight1115866.7
*Water molecules are not included.

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PDB entries from 2026-04-01

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