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6TRC

Cryo- EM structure of the Thermosynechococcus elongatus photosystem I in the presence of cytochrome c6

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, M, Y
(A, a, 1)
Photosystem I P700 chlorophyll a apoprotein A1polymer75583267.83UniProt (P0A405)
Pfam (PF00223)
Thermosynechococcus elongatus BP-1PsaA
2B, N, Z
(B, b, 2)
Photosystem I P700 chlorophyll a apoprotein A2polymer74183123.63UniProt (P0A407)
Pfam (PF00223)
Thermosynechococcus elongatus BP-1PsaB
3AA, C, O
(C, c, 3)
Photosystem I iron-sulfur centerpolymer818809.23UniProt (P0A415)
Pfam (PF12838)
Thermosynechococcus elongatus BP-19 kDa polypeptide,PSI-C,Photosystem I subunit VII,PsaC
4BA, D, P
(D, d, 4)
Photosystem I reaction center subunit IIpolymer13915389.53UniProt (P0A420)
Pfam (PF02531)
Thermosynechococcus elongatus BP-1Photosystem I 16 kDa polypeptide,PSI-D
5CA, E, Q
(E, e, 5)
Photosystem I reaction center subunit IVpolymer768399.53UniProt (P0A423)
Pfam (PF02427)
Thermosynechococcus elongatus BP-1Photosystem I 8.1 kDa protein,p30 protein
6DA, F, R
(F, f, 6)
Photosystem I reaction center subunit IIIpolymer14115129.43UniProt (P0A401)
Pfam (PF02507)
Thermosynechococcus elongatus BP-1PSI-F
7EA, G, S
(I, i, 7)
Photosystem I reaction center subunit VIIIpolymer384325.23UniProt (P0A427)
Pfam (PF00796)
Thermosynechococcus elongatus BP-1
8FA, H, T
(J, j, 8)
Photosystem I reaction center subunit IXpolymer414798.73UniProt (P0A429)
Pfam (PF01701)
Thermosynechococcus elongatus BP-1
9GA, I, U
(K, k, 9)
Photosystem I reaction center subunit PsaKpolymer838484.03UniProt (P0A425)
Pfam (PF01241)
Thermosynechococcus elongatus BP-1Light-harvesting 8.0 kDa polypeptide,Photosystem I subunit X
10HA, J, V
(L, l, 0)
Photosystem I reaction center subunit XIpolymer15516287.83UniProt (Q8DGB4)
Pfam (PF02605)
Thermosynechococcus elongatus BP-1PSI subunit V,PSI-L
11IA, K, W
(M, m, y)
Photosystem I reaction center subunit XIIpolymer313426.13UniProt (P0A403)
Pfam (PF07465)
Thermosynechococcus elongatus BP-1PSI-M
12JA, L, X
(X, x, z)
Photosystem I 4.8K proteinpolymer364104.93UniProt (Q8DKP6)
Pfam (PF08078)
Thermosynechococcus elongatus BP-1
13KA, PF, SK
(A, a, 1)
CHLOROPHYLL A ISOMERnon-polymer893.53Chemie (CL0)
14AB, AC, AD, AE, AG...
(A, B, a, b, 1...)
CHLOROPHYLL Anon-polymer893.5288Chemie (CLA)
15CC, DE, GH, GJ, JO...
(A, B, a, b, 2...)
PHYLLOQUINONEnon-polymer450.76Chemie (PQN)
16AF, AK, AP, BK, CK...
(J, j, 7, A, K...)
BETA-CAROTENEnon-polymer536.972Chemie (BCR)
17GK, HK, JP, KC, KF...
(l, 0, A, L, B...)
1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLEnon-polymer723.015Chemie (LHG)
18NC, OE, PE, PJ, QH...
(B, C, c, b, 2...)
IRON/SULFUR CLUSTERnon-polymer351.69Chemie (SF4)
19FF, KK, OC, OP, RH...
(L, l, B, 0, b...)
CALCIUM IONnon-polymer40.16Chemie (CA)
20KE, NJ, QO
(B, b, 2)
1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDEnon-polymer787.23Chemie (LMG)
21AQ, AR, BQ, BR, CQ...
(E, 9, F, 0, I...)
waterwater18.0651Chemie (HOH)
Sequence modifications
L, l, 0: 0 - 154 (UniProt: Q8DGB4)
PDBExternal DatabaseDetails
Leu 143Ser 144conflict
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains36
Total formula weight766637.2
Non-Polymers*Number of molecules402
Total formula weight317975.6
All*Total formula weight1084612.7
*Water molecules are not included.

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PDB entries from 2025-10-15

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