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1XOT

Catalytic Domain Of Human Phosphodiesterase 4B In Complex With Vardenafil

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(B, A)
cAMP-specific 3',5'-cyclic phosphodiesterase 4Bpolymer39845731.32UniProt (Q07343)
Pfam (PF00233)
Homo sapiens (human)DPDE4, PDE32
2C, F
(B, A)
ZINC IONnon-polymer65.42Chemie (ZN)
3D, G
(B, A)
MAGNESIUM IONnon-polymer24.32Chemie (MG)
4E, H
(B, A)
2-{2-ETHOXY-5-[(4-ETHYLPIPERAZIN-1-YL)SULFONYL]PHENYL}-5-METHYL-7-PROPYLIMIDAZO[5,1-F][1,2,4]TRIAZIN-4(1H)-ONEnon-polymer488.62Chemie (VDN)
5I, J
(B, A)
waterwater18.046Chemie (HOH)
Sequence modifications
B, A: 152 - 528 (UniProt: Q07343)
PDBExternal DatabaseDetails
Met 131-initiating methionine
Gly 132-cloning artifact
Ser 133-cloning artifact
Ser 134-cloning artifact
His 135-expression tag
His 136-expression tag
His 137-expression tag
His 138-expression tag
His 139-expression tag
His 140-expression tag
Ser 141-cloning artifact
Ser 142-cloning artifact
Gly 143-cloning artifact
Leu 144-cloning artifact
Val 145-cloning artifact
Pro 146-cloning artifact
Arg 147-cloning artifact
Gly 148-cloning artifact
Ser 149-cloning artifact
His 150-cloning artifact
Met 151-cloning artifact
Cme 194Cys 366modified residue
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight91462.7
Non-Polymers*Number of molecules6
Total formula weight1156.6
All*Total formula weight92619.3
*Water molecules are not included.

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PDB entries from 2025-06-18

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