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6NWA

The structure of the photosystem I IsiA super-complex

This is a non-PDB format compatible entry.
Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, DA, Q
(A, a, H)
Photosystem I P700 chlorophyll a apoprotein A1polymer75183022.43UniProt (P29254)
Pfam (PF00223)
Synechocystis sp. PCC 6803PsaA
2B, EA, R
(B, b, G)
Photosystem I P700 chlorophyll a apoprotein A2polymer73181369.53UniProt (P29255)
Pfam (PF00223)
Synechocystis sp. PCC 6803PsaB
3C, VA, WA
(C, c, N)
Photosystem I iron-sulfur centerpolymer818837.33UniProt (P32422)
Pfam (PF12838)
Synechocystis sp. PCC 68039 kDa polypeptide,PSI-C,Photosystem I subunit VII,PsaC
4D, FA, S
(D, d, O)
Photosystem I reaction center subunit IIpolymer14115663.73UniProt (P19569)
Pfam (PF02531)
Synechocystis sp. PCC 6803Photosystem I 16 kDa polypeptide,PSI-D
5E, PA, QA
(E, e, P)
Photosystem I reaction center subunit IVpolymer748154.13UniProt (P12975)
Pfam (PF02427)
Synechocystis sp. PCC 6803Photosystem I 8.1 kDa protein,p30 protein
6F, RA, SA
(F, f, Q)
Photosystem I reaction center subunit IIIpolymer16518267.13UniProt (P29256)
Pfam (PF02507)
Synechocystis sp. PCC 6803PSI-F
7G, GA, T
(I, i, R)
Photosystem I reaction center subunit VIIIpolymer404414.13UniProt (Q55330)
Pfam (PF00796)
Synechocystis sp. PCC 6803
8H, TA, UA
(J, j, S)
Photosystem I reaction center subunit IXpolymer404535.43UniProt (Q55329)
Pfam (PF01701)
Synechocystis sp. PCC 6803
9HA, I, V
(L, l, U)
Photosystem I reaction center subunit XIpolymer15716631.83UniProt (P37277)
Pfam (PF02605)
Synechocystis sp. PCC 6803PSI subunit V,PSI-L
10IA, J, W
(M, m, V)
Photosystem I reaction center subunit XIIpolymer313382.13UniProt (P72986)
Pfam (PF07465)
Synechocystis sp. PCC 6803PSI-M
11AA, BA, CA, JA, K...
(W, X, Y, Z, g...)
Iron stress-induced chlorophyll-binding proteinpolymer34237250.718UniProt (Q55274)
Pfam (PF00421)
Synechocystis sp. PCC 6803CP43'
12U, XA, YA
(k, K, T)
Photosystem I reaction center subunit PsaK 1polymer868649.33UniProt (P72712)
Pfam (PF01241)
Synechocystis sp. PCC 6803Photosystem I subunit X 1
13AB, HU, IU, JF, MY...
(A, H, I, R, a...)
1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLEnon-polymer723.09Chemie (LHG)
14AN, BB, BN, ED, FD...
(a, A, b, s, B...)
1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDEnon-polymer787.215Chemie (LMG)
PubChem (446441)
15CB, KU, XK
(A, H, a)
CHLOROPHYLL A ISOMERnon-polymer893.53Chemie (CL0)
16AAA, ABA, AC, ADA, AE...
(u, s, A, v, B...)
CHLOROPHYLL Anon-polymer893.5588Chemie (CLA)
17EW, EY, RM, RO, WC...
(H, G, a, b, A...)
PHYLLOQUINONEnon-polymer450.76Chemie (PQN)
PubChem (5284607)
18EF, FF, FW, IEA, JEA...
(C, H, c, N, a...)
IRON/SULFUR CLUSTERnon-polymer351.69Chemie (SF4)
19ACA, AD, AEA, AF, AJ...
(w, A, j, B, Z...)
BETA-CAROTENEnon-polymer536.9135Chemie (BCR)
PubChem (5280489)
PubChem (86765360)
PubChem (173398668)
20JP, UY, WF
(l, U, L)
DODECYL-BETA-D-MALTOSIDEnon-polymer510.63Chemie (LMT)
PubChem (114880)
21KP, VY, XF
(l, U, L)
CALCIUM IONnon-polymer40.13Chemie (CA)
PubChem (271)
Sequence modifications
A, a, H: 1 - 751 (UniProt: P29254)
PDBExternal DatabaseDetails
Val 604Ile 604conflict
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains51
Total formula weight1429293.5
Non-Polymers*Number of molecules771
Total formula weight626365.0
All*Total formula weight2055658.5
*Water molecules are not included.

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PDB entries from 2026-06-03

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