4HEE

Crystal structure of PPARgamma in complex with compound 13


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.195 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Design, synthesis, and evaluation of imidazo[4,5-c]pyridin-4-one derivatives with dual activity at angiotensin II type 1 receptor and peroxisome proliferator-activated receptor-gamma

Casimiro-Garcia, A.Heemstra, R.J.Bigge, C.F.Chen, J.Ciske, F.A.Davis, J.A.Ellis, T.Esmaeil, N.Flynn, D.Han, S.Jalaie, M.Ohren, J.F.Powell, N.A.

(2013) Bioorg Med Chem Lett 23: 767-772

  • DOI: 10.1016/j.bmcl.2012.11.088
  • Primary Citation of Related Structures:  
    4HEE

  • PubMed Abstract: 
  • Identification of a series of imidazo[4,5-c]pyridin-4-one derivatives that act as dual angiotensin II type 1 (AT1) receptor antagonists and peroxisome proliferator-activated receptor-γ (PPARγ) partial agonists is described. Starting from a known AT1 antagonist template, conformational restriction was introduced by incorporation of an indane ring that when combined with appropriate substitution at the imidazo[4,5-c]pyridin-4-one provided novel series 5 possessing the desired dual activity ...

    Identification of a series of imidazo[4,5-c]pyridin-4-one derivatives that act as dual angiotensin II type 1 (AT1) receptor antagonists and peroxisome proliferator-activated receptor-γ (PPARγ) partial agonists is described. Starting from a known AT1 antagonist template, conformational restriction was introduced by incorporation of an indane ring that when combined with appropriate substitution at the imidazo[4,5-c]pyridin-4-one provided novel series 5 possessing the desired dual activity. The mode of interaction of this series with PPARγ was corroborated through the X-ray crystal structure of 12b bound to the human PPARγ ligand binding domain. Modulation of activity at both receptors through substitution at the pyridone nitrogen led to the identification of potent dual AT1 antagonists/PPARγ partial agonists. Among them, 21b was identified possessing potent dual pharmacology (AT1 IC(50) = 7 nM; PPARγ EC(50) = 295 nM, 27% max) and good ADME properties.


    Organizational Affiliation

    Worldwide Medicinal Chemistry, Pfizer Worldwide Research and Development, 200 Cambridgepark Drive, Cambridge, MA 02140, USA. agustin.casimiro-garcia@pfizer.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Peroxisome proliferator-activated receptor gammaA [auth X]282Homo sapiensMutation(s): 0 
Gene Names: PPARGNR1C3
Find proteins for P37231 (Homo sapiens)
Explore P37231 
Go to UniProtKB:  P37231
NIH Common Fund Data Resources
PHAROS:  P37231
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Nuclear receptor coactivator 1B [auth Y]25Homo sapiensMutation(s): 0 
Gene Names: NCOA1BHLHE74SRC1
EC: 2.3.1.48
Find proteins for Q15788 (Homo sapiens)
Explore Q15788 
Go to UniProtKB:  Q15788
NIH Common Fund Data Resources
PHAROS:  Q15788
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
14R
Query on 14R

Download Ideal Coordinates CCD File 
C [auth X]5-benzyl-2-ethyl-3-{(1S)-5-[2-(1H-tetrazol-5-yl)phenyl]-2,3-dihydro-1H-inden-1-yl}-3,5-dihydro-4H-imidazo[4,5-c]pyridin-4-one
C31 H27 N7 O
QAYQVTMHUMLSNG-MHZLTWQESA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
14REC50:  292   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.195 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.787α = 90
b = 72.382β = 90
c = 143.868γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
BUSTERrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2012-10-03 
  • Released Date: 2013-08-21 
  • Deposition Author(s): Han, S.

Revision History  (Full details and data files)

  • Version 1.0: 2013-08-21
    Type: Initial release