3DYS

human phosphodiestrase-5'GMP complex (EP), produced by soaking with 20mM cGMP+20 mM MnCl2+20 mM MgCl2 for 2 hours, and flash-cooled to liquid nitrogen temperature when substrate was still abudant.

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Structural basis for the catalytic mechanism of human phosphodiesterase 9.

Liu, S., Mansour, M.N., Dillman, K.S., Perez, J.R., Danley, D.E., Aeed, P.A., Simons, S.P., Lemotte, P.K., Menniti, F.S.

(2008) Proc.Natl.Acad.Sci.Usa 105: 13309-13314

  • DOI: 10.1073/pnas.0708850105
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • The phosphodiesterases (PDEs) are metal ion-dependent enzymes that regulate cellular signaling by metabolic inactivation of the ubiquitous second messengers cAMP and cGMP. In this role, the PDEs are involved in many biological and metabolic processes ...

    The phosphodiesterases (PDEs) are metal ion-dependent enzymes that regulate cellular signaling by metabolic inactivation of the ubiquitous second messengers cAMP and cGMP. In this role, the PDEs are involved in many biological and metabolic processes and are proven targets of successful drugs for the treatments of a wide range of diseases. However, because of the rapidity of the hydrolysis reaction, an experimental knowledge of the enzymatic mechanisms of the PDEs at the atomic level is still lacking. Here, we report the structures of reaction intermediates accumulated at the reaction steady state in PDE9/crystal and preserved by freeze-trapping. These structures reveal the catalytic process of a PDE and explain the substrate specificity of PDE9 in an actual reaction and the cation requirements of PDEs in general.

    Organizational Affiliation: 

    Pfizer Global Research and Development, Pfizer Inc., Eastern Point Road, Groton, CT 06340, USA. shenping.liu@pfizer.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
High affinity cGMP-specific 3',5'-cyclic phosphodiesterase 9A
A, B
329Homo sapiensMutation(s): 0 
Gene Names: PDE9A
EC: 3.1.4.35
Find proteins for O76083 (Homo sapiens)
Go to Gene View: PDE9A
Go to UniProtKB:  O76083
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN
Download SDF File 
Download CCD File 
A, B
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
FMT
Query on FMT
Download SDF File 
Download CCD File 
B
FORMIC ACID
C H2 O2
BDAGIHXWWSANSR-UHFFFAOYSA-N
 Ligand Interaction
IBM
Query on IBM
Download SDF File 
Download CCD File 
B
3-ISOBUTYL-1-METHYLXANTHINE
C10 H14 N4 O2
APIXJSLKIYYUKG-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG
Download SDF File 
Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
5GP
Query on 5GP
Download SDF File 
Download CCD File 
A
GUANOSINE-5'-MONOPHOSPHATE
C10 H14 N5 O8 P
RQFCJASXJCIDSX-UUOKFMHZSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.186 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 103.992α = 90.00
b = 103.992β = 90.00
c = 269.762γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-09-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance