2Y0J

Triazoloquinazolines as a novel class of phosphodiesterase 10A (PDE10A) inhibitors, part 2, Lead-optimisation.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.43 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.221 
  • R-Value Observed: 0.224 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Triazoloquinazolines as a Novel Class of Phosphodiesterase 10A (Pde10A) Inhibitors.

Kehler, J.Ritzen, A.Langgard, M.Petersen, S.L.Farah, M.M.Bundgaard, C.Christoffersen, C.T.Nielsen, J.Kilburn, J.P.

(2011) Bioorg Med Chem Lett 21: 3738

  • DOI: 10.1016/j.bmcl.2011.04.067
  • Primary Citation of Related Structures:  
    2Y0J

  • PubMed Abstract: 
  • Novel triazoloquinazolines have been found as phosphodiesterase 10A (PDE10A) inhibitors. Structure-activity studies improved the initial micromolar potency which was found in the lead compound by a 100-fold identifying 5-(1H-benzoimidazol-2-ylmethyls ...

    Novel triazoloquinazolines have been found as phosphodiesterase 10A (PDE10A) inhibitors. Structure-activity studies improved the initial micromolar potency which was found in the lead compound by a 100-fold identifying 5-(1H-benzoimidazol-2-ylmethylsulfanyl)-2-methyl-[1,2,4]triazolo[1,5-c]quinazoline, 42 (PDE10A IC(50)=12 nM) as the most potent compound from the series. Two X-ray structures revealed novel binding modes to the catalytic site of the PDE10A enzyme.


    Organizational Affiliation

    H. Lundbeck A/S, Department of Discovery Chemistry & DMPK, Valby, Denmark. jke@lundbeck.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CAMP AND CAMP-INHIBITED CGMP 3', 5'-CYCLIC PHOSPHODIESTERASE 10AAB340Homo sapiensMutation(s): 0 
Gene Names: PDE10A
EC: 3.1.4.17 (PDB Primary Data), 3.1.4.35 (UniProt)
Find proteins for Q9Y233 (Homo sapiens)
Explore Q9Y233 
Go to UniProtKB:  Q9Y233
NIH Common Fund Data Resources
PHAROS  Q9Y233
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
AXC
Query on AXC

Download CCD File 
A, B
5-(1H-BENZIMIDAZOL-2-YLMETHYLSULFANYL)-2-METHYL-[1,2,4]TRIAZOLO[1,5-C]QUINAZOLINE
C18 H14 N6 S
VVYNKZKNFFKZDW-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
AXCIC50 :  12   nM  PDBBind
AXCIC50:  12   nM  BindingDB
AXCIC50:  12   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.43 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.221 
  • R-Value Observed: 0.224 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.38α = 90
b = 81.69β = 90
c = 160.62γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-06-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance