IGFR-1R complex with a pyrimidine inhibitor.

Experimental Data Snapshot

  • Resolution: 2.30 Å
  • R-Value Free: 0.275 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Discovery of a Potent, Selective, Orally Bioavailable, and Efficacious Novel 2-(Pyrazol-4-ylamino)-pyrimidine Inhibitor of the Insulin-like Growth Factor-1 Receptor (IGF-1R).

Degorce, S.L.Boyd, S.Curwen, J.O.Ducray, R.Halsall, C.T.Jones, C.D.Lach, F.Lenz, E.M.Pass, M.Pass, S.Trigwell, C.

(2016) J Med Chem 59: 4859-4866

  • DOI: https://doi.org/10.1021/acs.jmedchem.6b00203
  • Primary Citation of Related Structures:  
    5FXQ, 5FXR, 5FXS

  • PubMed Abstract: 

    Optimization of cellular lipophilic ligand efficiency (LLE) in a series of 2-anilino-pyrimidine IGF-1R kinase inhibitors led to the identification of novel 2-(pyrazol-4-ylamino)-pyrimidines with improved physicochemical properties. Replacement of the imidazo[1,2-a]pyridine group of the previously reported inhibitor 3 with the related pyrazolo[1,5-a]pyridine improved IGF-1R cellular potency. Substitution of the amino-pyrazole group was key to obtaining excellent kinase selectivity and pharmacokinetic parameters suitable for oral dosing, which led to the discovery of (2R)-1-[4-(4-{[5-chloro-4-(pyrazolo[1,5-a]pyridin-3-yl)-2-pyrimidinyl]amino}-3,5-dimethyl-1H-pyrazol-1-yl)-1-piperidinyl]-2-hydroxy-1-propanone (AZD9362, 28), a novel, efficacious inhibitor of IGF-1R.

  • Organizational Affiliation

    Oncology Innovative Medicines Unit, AstraZeneca, Centre de Recherches , Z.I. la Pompelle, BP1050, 51689 Reims Cedex 2, France.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
INSULIN-LIKE GROWTH FACTOR 1 RECEPTOR308Homo sapiensMutation(s): 0 
Gene Names: IGF1R
UniProt & NIH Common Fund Data Resources
Find proteins for P08069 (Homo sapiens)
Explore P08069 
Go to UniProtKB:  P08069
PHAROS:  P08069
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08069
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on GD5

Download Ideal Coordinates CCD File 
B [auth A]5-chloranyl-4-imidazo[1,2-a]pyridin-3-yl-N-(5-methyl-1-piperidin-4-yl-pyrazol-4-yl)pyrimidin-2-amine
C20 H21 Cl N8
Binding Affinity Annotations 
IDSourceBinding Affinity
GD5 BindingDB:  5FXQ IC50: min: 14, max: 55 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.30 Å
  • R-Value Free: 0.275 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.932α = 90
b = 66.798β = 90
c = 121.479γ = 90
Software Package:
Software NamePurpose

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-10-19
    Type: Initial release
  • Version 1.1: 2018-05-16
    Changes: Data collection, Database references
  • Version 1.2: 2018-07-11
    Changes: Data collection, Database references