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2WDV

E. coli succinate:quinone oxidoreductase (SQR) with an empty quinone- binding pocket

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, E, I
(A, E, I)
SUCCINATE DEHYDROGENASE FLAVOPROTEIN SUBUNITpolymer58864502.83UniProt (P0AC41)
Pfam (PF00890)
Pfam (PF02910)
ESCHERICHIA COLI
2B, F, J
(B, F, J)
SUCCINATE DEHYDROGENASE IRON-SULFUR SUBUNITpolymer23826800.93UniProt (P07014)
Pfam (PF13085)
Pfam (PF13534)
ESCHERICHIA COLI
3C, G, K
(C, G, K)
SUCCINATE DEHYDROGENASE CYTOCHROME B556 SUBUNITpolymer12914313.13UniProt (P69054)
Pfam (PF01127)
ESCHERICHIA COLI
4D, H, L
(D, H, L)
SUCCINATE DEHYDROGENASE HYDROPHOBIC MEMBRANE ANCHOR PROTEINpolymer11512874.43UniProt (P0AC44)
Pfam (PF01127)
ESCHERICHIA COLI
5AA, M, T
(I, A, E)
FLAVIN-ADENINE DINUCLEOTIDEnon-polymer785.53Chemie (FAD)
6BA, N, U
(I, A, E)
MALATE LIKE INTERMEDIATEnon-polymer132.13Chemie (TEO)
7CA, O, V
(I, A, E)
SODIUM IONnon-polymer23.03Chemie (NA)
8DA, P, W
(J, B, F)
FE2/S2 (INORGANIC) CLUSTERnon-polymer175.83Chemie (FES)
9EA, Q, X
(J, B, F)
IRON/SULFUR CLUSTERnon-polymer351.63Chemie (SF4)
10FA, R, Y
(J, B, F)
FE3-S4 CLUSTERnon-polymer295.83Chemie (F3S)
11GA, S, Z
(K, C, G)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.53Chemie (HEM)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains12
Total formula weight355473.6
Non-Polymers*Number of molecules21
Total formula weight7141.1
All*Total formula weight362614.7
*Water molecules are not included.

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PDB entries from 2025-12-10

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