3UI7

Discovery of orally active pyrazoloquinoline as a potent PDE10 inhibitor for the management of schizophrenia


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.28 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Discovery of orally active pyrazoloquinolines as potent PDE10 inhibitors for the management of schizophrenia.

Yang, S.W.Smotryski, J.McElroy, W.T.Tan, Z.Ho, G.Tulshian, D.Greenlee, W.J.Guzzi, M.Zhang, X.Mullins, D.Xiao, L.Hruza, A.Chan, T.M.Rindgen, D.Bleickardt, C.Hodgson, R.

(2012) Bioorg Med Chem Lett 22: 235-239

  • DOI: 10.1016/j.bmcl.2011.11.023
  • Primary Citation of Related Structures:  
    3UI7

  • PubMed Abstract: 
  • A series of pyrazoloquinoline analogs have been synthesized and shown to bind to PDE10 with high affinity. From the SAR study and our lead optimization efforts, compounds 16 and 27 were found to possess potent oral antipsychotic activity in the MK-801 induced hyperactive rat model ...

    A series of pyrazoloquinoline analogs have been synthesized and shown to bind to PDE10 with high affinity. From the SAR study and our lead optimization efforts, compounds 16 and 27 were found to possess potent oral antipsychotic activity in the MK-801 induced hyperactive rat model.


    Organizational Affiliation

    Department of Medicinal Chemistry, Merck Research Laboratories, 2015 Galloping Hill Road, Kenilworth, NJ 07033, United States. shu-wei.yang@merck.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
cAMP and cAMP-inhibited cGMP 3',5'-cyclic phosphodiesterase 10AA, B333Homo sapiensMutation(s): 0 
Gene Names: PDE10A
EC: 3.1.4.17 (PDB Primary Data), 3.1.4.35 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y233 (Homo sapiens)
Explore Q9Y233 
Go to UniProtKB:  Q9Y233
PHAROS:  Q9Y233
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
C1L
Query on C1L

Download Ideal Coordinates CCD File 
C [auth A], F [auth B]6-methoxy-3,8-dimethyl-4-(morpholin-4-ylmethyl)-1H-pyrazolo[3,4-b]quinoline
C18 H22 N4 O2
UBGXXNXAPLUDQK-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
E [auth A], H [auth B]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
D [auth A], G [auth B]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
C1LKi:  1   nM  Binding MOAD
C1LKi:  1   nM  BindingDB
C1LKi :  1   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.28 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.539α = 90
b = 81.611β = 90
c = 158.577γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
AutoPROCdata scaling
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-12-21
    Type: Initial release
  • Version 1.1: 2012-01-11
    Changes: Database references