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6IBF

Crystal structure of human phosphodiesterase 4D2 catalytic domain with inhibitor NPD-417

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, C, D
(A, B, C, D)
cAMP-specific 3',5'-cyclic phosphodiesterase 4Dpolymer36441808.24UniProt (Q08499)
Pfam (PF00233)
Homo sapiens (Human)DPDE3,PDE43
2E, EA, NA, R
(A, C, D, B)
ZINC IONnon-polymer65.44Chemie (ZN)
3F, FA, OA, S
(A, C, D, B)
MAGNESIUM IONnon-polymer24.34Chemie (MG)
4AB, BA, BB, CA, DB...
(D, B, A, C)
1,2-ETHANEDIOLnon-polymer62.138Chemie (EDO)
5AA, CB, IA, N
(B, D, C, A)
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACIDnon-polymer238.34Chemie (EPE)
6DA, GB, LA, Q
(B, D, C, A)
(4~{a}~{S},8~{a}~{R})-4-[4-methoxy-3-[[2-(trifluoromethyl)phenyl]methoxy]phenyl]-2-(1-thieno[3,2-d]pyrimidin-4-ylpiperidin-4-yl)-4~{a},5,8,8~{a}-tetrahydrophthalazin-1-onenon-polymer647.74Chemie (4I7)
7XA, YA
(D)
DI(HYDROXYETHYL)ETHERnon-polymer106.12Chemie (PEG)
8IB, JB, KB, LB
(A, B, C, D)
waterwater18.0528Chemie (HOH)
Sequence modifications
A, B, C, D: 79 - 438 (UniProt: Q08499)
PDBExternal DatabaseDetails
Gly 75-expression tag
Ser 76-expression tag
His 77-expression tag
Met 78-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight167233.0
Non-Polymers*Number of molecules56
Total formula weight6473.7
All*Total formula weight173706.7
*Water molecules are not included.

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PDB entries from 2025-06-18

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