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2WDQ

E. coli succinate:quinone oxidoreductase (SQR) with carboxin bound

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 SUBUNITpolymer11512874.43UniProt (P0AC44)
Pfam (PF01127)
ESCHERICHIA COLI
5EA, M, V
(I, A, E)
FLAVIN-ADENINE DINUCLEOTIDEnon-polymer785.53Chemie (FAD)
6FA, N, W
(I, A, E)
MALATE LIKE INTERMEDIATEnon-polymer132.13Chemie (TEO)
7GA, O, X
(I, A, E)
SODIUM IONnon-polymer23.03Chemie (NA)
8HA, P, Y
(I, A, E)
SULFATE IONnon-polymer96.13Chemie (SO4)
9IA, Q, Z
(J, B, F)
FE2/S2 (INORGANIC) CLUSTERnon-polymer175.83Chemie (FES)
10AA, JA, R
(F, J, B)
IRON/SULFUR CLUSTERnon-polymer351.63Chemie (SF4)
11BA, KA, S
(F, J, B)
FE3-S4 CLUSTERnon-polymer295.83Chemie (F3S)
12CA, LA, T
(G, K, C)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.53Chemie (HEM)
13DA, MA, U
(G, K, C)
2-METHYL-N-PHENYL-5,6-DIHYDRO-1,4-OXATHIINE-3-CARBOXAMIDEnon-polymer235.33Chemie (CBE)
14NA, OA, PA, QA, RA...
(A, B, C, D, E...)
waterwater18.01116Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains12
Total formula weight355473.6
Non-Polymers*Number of molecules27
Total formula weight8135.2
All*Total formula weight363608.8
*Water molecules are not included.

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PDB entries from 2025-12-17

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