Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 80125.30 
• Atom Count: 5095 
• Residue Count: 680 
• Unique protein chains: 1

2Y0J

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

• DOI: 10.2210/pdb2Y0J/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda


• Deposited: 2010-12-03 Released: 2011-06-15 
• Deposition Author(s): Kehler, J., Ritzen, A., Langgard, M., Petersen, S.L., Christoffersen, C.T., Nielsen, J., Kilburn, J.P.

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Experimental Data Snapshot

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

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

• PubMed: 21602043 
• DOI: 10.1016/j.bmcl.2011.04.067


• 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-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.

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Organizational Affiliation: 

H. Lundbeck A/S, Department of Discovery Chemistry & DMPK, Valby, Denmark. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
CAMP AND CAMP-INHIBITED CGMP 3', 5'-CYCLIC PHOSPHODIESTERASE 10A	A, B	340	Homo sapiens	Mutation(s): 0  Gene Names: PDE10A EC: 3.1.4.17, 3.1.4.35
Find proteins for Q9Y233 (Homo sapiens) Go to Gene View: PDE10A Go to UniProtKB:  Q9Y233

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
ZN	A, B	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
MG	A, B	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N
AXC	A, B	5-(1H-BENZIMIDAZOL-2-YLMETHYLSULFANYL)-2-METHYL-[1,2,4]TRIAZOLO[1,5-C]QUINAZOLINE C18 H14 N6 S VVYNKZKNFFKZDW-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
AXC	IC50: 12 nM (100) BINDINGDB
AXC	IC50: 12 nM BINDINGMOAD
AXC	IC50: 12 nM PDBBIND

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.43 Å
• R-Value Free: 0.284 
• R-Value Work: 0.221 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 49.380	α = 90.00
b = 81.690	β = 90.00
c = 160.620	γ = 90.00

Software Package:

Software Name	Purpose
MOSFLM	data reduction
REFMAC	refinement
MOLREP	phasing
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-12-03 
• Released Date: 2011-06-15 
• Deposition Author(s): Kehler, J., Ritzen, A., Langgard, M., Petersen, S.L., Christoffersen, C.T., Nielsen, J., Kilburn, J.P.

Revision History 

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