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4NPV

Crystal structure of human PDE1B bound to inhibitor 7A (6,7,8-trimethoxy-N-(pentan-3-yl)quinazolin-4-amine)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1Bpolymer36942134.91UniProt (Q01064)
Pfam (PF00233)
Homo sapiens (human)Cam-PDE 1B, 63 kDa Cam-PDE
2B
(A)
6,7,8-trimethoxy-N-(pentan-3-yl)quinazolin-4-aminenon-polymer305.41Chemie (0NK)
3C
(A)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
4D
(A)
ZINC IONnon-polymer65.41Chemie (ZN)
5E
(A)
waterwater18.0174Chemie (HOH)
Sequence modifications
A: 142 - 507 (UniProt: Q01064)
PDBExternal DatabaseDetails
Gly 139-expression tag
Ser 140-expression tag
Met 141-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight42134.9
Non-Polymers*Number of molecules3
Total formula weight395.1
All*Total formula weight42530.0
*Water molecules are not included.

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PDB entries from 2025-11-05

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