Structure of PDB 5k32 Chain A

Receptor sequence
>5k32A (length=322) Species: 9606 (Homo sapiens) [Search protein sequence]
QEDVLAKELEDVNKWGLHVFRIAELSGNRPLTVIMHTIFQERDLLKTFKI
PVDTLITYLMTLEDHYHADVAYHNNIHAADVVQSTHVLLSTPALEAVFTD
LEILAAIFASAIHDVDHPGVSNQFLINTNSELALMYNDSSVLENHHLAVG
FKLLQEENCDIFQNLTKKQRQSLRKMVIDIVLATDMSKHMNLLADLKTMV
ETKKVTSSGVLLLDNYSDRIQVLQNMVHCADLSNPTKPLQLYRQWTDRIM
EEFFRQGDRERERGMEISCDKHNASVEKSQVGFIDYIVHPLWETWADLVH
PDAQDILDTLEDNREWYQSTIP
3D structure
PDB5k32 4-Amino-7,8-dihydro-1,6-naphthyridin-5(6 H)-ones as Inhaled Phosphodiesterase Type 4 (PDE4) Inhibitors: Structural Biology and Structure-Activity Relationships.
ChainA
Resolution1.99 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 3.1.4.53: 3',5'-cyclic-AMP phosphodiesterase.
Interaction with ligand
Site
#
Ligand Ligand
chain
Binding residues on receptor
(original residue number in PDB)
Binding residues on receptor
(residue number reindexed from 1)
Binding affinity
BS01 ZN A H164 H200 D201 D318 H77 H113 D114 D231
BS02 6Q2 A Y159 D318 N321 F340 Q369 F372 Y72 D231 N234 F253 Q280 F283 PDBbind-CN: -logKd/Ki=8.80,IC50=1.6nM
Gene Ontology
Molecular Function
GO:0004114 3',5'-cyclic-nucleotide phosphodiesterase activity
GO:0008081 phosphoric diester hydrolase activity
Biological Process
GO:0007165 signal transduction

View graph for
Molecular Function

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Biological Process
External links
PDB RCSB:5k32, PDBe:5k32, PDBj:5k32
PDBsum5k32
PubMed29502405
UniProtQ08499|PDE4D_HUMAN 3',5'-cyclic-AMP phosphodiesterase 4D (Gene Name=PDE4D)

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