Structure of PDB 1xm4 Chain A

Receptor sequence
>1xm4A (length=323) Species: 9606 (Homo sapiens) [Search protein sequence]
EDHLAKELEDLNKWGLNIFNVAGYSHNRPLTCIMYAIFQERDLLKTFRIS
SDTFITYMMTLEDHYHSDVAYHNSLHAADVAQSTHVLLSTPALDAVFTDL
EILAAIFAAAIHDVDHPGVSNQFLINTNSELALMYNDESVLENHHLAVGF
KLLQEEHCDIFMNLTKKQRQTLRKMVIDMVLATDMSKHMSLLADLKTMVE
TKKVTSSGVLLLDNYTDRIQVLRNMVHCADLSNPTKSLELYRQWTDRIME
EFFQQGDKERERGMEISPMCDKHTASVEKSQVGFIDYIVHPLWETWADLV
QPDAQDILDTLEDNRNWYQSMIP
3D structure
PDB1xm4 Structural Basis for the Activity of Drugs that Inhibit Phosphodiesterases.
ChainA
Resolution2.31 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 H238 H274 D275 D392 H76 H112 D113 D230
BS02 PIL A H234 M347 D392 L393 T407 I410 F414 S442 Q443 F446 H72 M185 D230 L231 T245 I248 F252 S280 Q281 F284 MOAD: ic50=0.041nM
PDBbind-CN: -logKd/Ki=10.39,IC50=0.041nM
BindingDB: IC50=1nM,Ki=1.5nM
Gene Ontology
Molecular Function
GO:0004114 3',5'-cyclic-nucleotide phosphodiesterase activity
GO:0008081 phosphoric diester hydrolase activity
Biological Process
GO:0007165 signal transduction

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Molecular Function
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Biological Process
External links
PDB RCSB:1xm4, PDBe:1xm4, PDBj:1xm4
PDBsum1xm4
PubMed15576036
UniProtQ07343|PDE4B_HUMAN 3',5'-cyclic-AMP phosphodiesterase 4B (Gene Name=PDE4B)

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