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2W3R

Crystal Structure of Xanthine Dehydrogenase (desulfo form) from Rhodobacter capsulatus in complex with hypoxanthine

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, C, E, G
(A, C, E, G)
XANTHINE DEHYDROGENASEpolymer46249420.54UniProt (O54050)RHODOBACTER CAPSULATUSXDHA
2B, D, F, H
(B, D, F, H)
XANTHINE DEHYDROGENASEpolymer77782978.04UniProt (O54051)RHODOBACTER CAPSULATUSXDHB
3AA, BA, I, J, O...
(G, A, C, E)
FE2/S2 (INORGANIC) CLUSTERnon-polymer175.88Chemie (FES)
4CA, K, Q, W
(G, A, C, E)
FLAVIN-ADENINE DINUCLEOTIDEnon-polymer785.54Chemie (FAD)
5DA, L, R, X
(H, B, D, F)
CALCIUM IONnon-polymer40.14Chemie (CA)
PubChem (271)
6EA, M, S, Y
(H, B, D, F)
HYPOXANTHINEnon-polymer136.14Chemie (HPA)
7FA, N, T, Z
(H, B, D, F)
Molybdopterin hydrox dioxo molybdenumnon-polymer538.34Chemie (DYI)
8GA, HA, IA, JA, KA...
(A, B, C, D, E...)
waterwater18.081Chemie (HOH)
Sequence modifications
A, C, E, G: 1 - 462 (UniProt: O54050)
PDBExternal DatabaseDetails
Trp 26Leu 26conflict
B, D, F, H: 1 - 777 (UniProt: O54051)
PDBExternal DatabaseDetails
Arg 772Gly 772conflict
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains8
Total formula weight529594.2
Non-Polymers*Number of molecules24
Total formula weight7406.6
All*Total formula weight537000.8
*Water molecules are not included.

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PDB entries from 2026-10-07

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