Cocrystal structure of unphosphorylated igf with pyrimidine 8

Experimental Data Snapshot

  • Resolution: 2.90 Å
  • R-Value Free: 0.302 
  • R-Value Work: 0.273 
  • R-Value Observed: 0.273 

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Discovery of 2,4-bis-arylamino-1,3-pyrimidines as insulin-like growth factor-1 receptor (IGF-1R) inhibitors.

Buchanan, J.L.Newcomb, J.R.Carney, D.P.Chaffee, S.C.Chai, L.Cupples, R.Epstein, L.F.Gallant, P.Gu, Y.Harmange, J.C.Hodge, K.Houk, B.E.Huang, X.Jona, J.Joseph, S.Jun, H.T.Kumar, R.Li, C.Lu, J.Menges, T.Morrison, M.J.Novak, P.M.van der Plas, S.Radinsky, R.Rose, P.E.Sawant, S.Sun, J.R.Surapaneni, S.Turci, S.M.Xu, K.Yanez, E.Zhao, H.Zhu, X.

(2011) Bioorg Med Chem Lett 21: 2394-2399

  • DOI: https://doi.org/10.1016/j.bmcl.2011.02.075
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The insulin-like growth factor-1 receptor (IGF-1R) plays an important role in the regulation of cell growth and differentiation, and in protection from apoptosis. IGF-1R has been shown to be an appealing target for the treatment of human cancer. Herein, we report the synthesis, structure-activity relationships (SAR), X-ray cocrystal structure and in vivo tumor study results for a series of 2,4-bis-arylamino-1,3-pyrimidines.

  • Organizational Affiliation

    Department of Medicinal Chemistry, Amgen Inc., 360 Binney Street, Cambridge, MA 02142, USA. john.buchanan@amgen.com

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Insulin-like growth factor 1 receptor
A, B, C, D
301Homo sapiensMutation(s): 0 
Gene Names: IGF1R
UniProt & NIH Common Fund Data Resources
Find proteins for P08069 (Homo sapiens)
Explore P08069 
Go to UniProtKB:  P08069
GTEx:  ENSG00000140443 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08069
Sequence Annotations
  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
01P BindingDB:  3QQU IC50: min: 2.4, max: 8.4 (nM) from 2 assay(s)
PDBBind:  3QQU IC50: 2.4 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.90 Å
  • R-Value Free: 0.302 
  • R-Value Work: 0.273 
  • R-Value Observed: 0.273 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.792α = 65.37
b = 90.931β = 89.42
c = 96.966γ = 84.67
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

  • Released Date: 2011-04-20 
  • Deposition Author(s): Huang, X.

Revision History  (Full details and data files)

  • Version 1.0: 2011-04-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2024-02-21
    Changes: Data collection, Database references, Derived calculations, Structure summary