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3QI4

Crystal structure of PDE9A(Q453E) in complex with IBMX

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
High affinity cGMP-specific 3',5'-cyclic phosphodiesterase 9Apolymer53361790.12UniProt (O76083)
Pfam (PF00233)
Homo sapiens (human)
2C, F
(A, B)
3-ISOBUTYL-1-METHYLXANTHINEnon-polymer222.22Chemie (IBM)
3D, G
(A, B)
ZINC IONnon-polymer65.42Chemie (ZN)
4E, H
(A, B)
MAGNESIUM IONnon-polymer24.32Chemie (MG)
5I, J
(A, B)
waterwater18.029Chemie (HOH)
Sequence modifications
A, B: 1 - 533 (UniProt: O76083)
PDBExternal DatabaseDetails
Glu 453Gln 453engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight123580.1
Non-Polymers*Number of molecules6
Total formula weight623.9
All*Total formula weight124204.0
*Water molecules are not included.

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PDB entries from 2025-07-30

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