C-Met in complex with OSI ligand

Experimental Data Snapshot

  • Resolution: 2.40 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.240 
  • R-Value Observed: 0.241 

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Ligand Structure Quality Assessment 

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Novel 6-aminofuro[3,2-c]pyridines as potent, orally efficacious inhibitors of cMET and RON kinases.

Steinig, A.G.Li, A.H.Wang, J.Chen, X.Dong, H.Ferraro, C.Jin, M.Kadalbajoo, M.Kleinberg, A.Stolz, K.M.Tavares-Greco, P.A.Wang, T.Albertella, M.R.Peng, Y.Crew, L.Kahler, J.Kan, J.Schulz, R.Cooke, A.Bittner, M.Turton, R.W.Franklin, M.Gokhale, P.Landfair, D.Mantis, C.Workman, J.Wild, R.Pachter, J.Epstein, D.Mulvihill, M.J.

(2013) Bioorg Med Chem Lett 23: 4381-4387

  • DOI: https://doi.org/10.1016/j.bmcl.2013.05.074
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    A series of novel 6-aminofuro[3,2-c]pyridines as kinase inhibitors is described, most notably, OSI-296 (6). We discuss our exploration of structure-activity relationships and optimization leading to OSI-296 and disclose its pharmacological activity against cMET and RON in cellular assays. OSI-296 is a potent and selective inhibitor of cMET and RON kinases that shows in vivo efficacy in tumor xenografts models upon oral dosing and is well tolerated.

  • Organizational Affiliation

    OSI Pharmaceuticals, LLC, A Wholly-Owned Subsidiary of Astellas US, 1 Bioscience Park Drive, Farmingdale, NY 11735, USA. arnosteinig@gmail.com

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Hepatocyte growth factor receptor
A, B, C, D
287Homo sapiensMutation(s): 0 
Gene Names: MET
UniProt & NIH Common Fund Data Resources
Find proteins for P08581 (Homo sapiens)
Explore P08581 
Go to UniProtKB:  P08581
PHAROS:  P08581
GTEx:  ENSG00000105976 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08581
Sequence Annotations
  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
1RU Binding MOAD:  4KNB IC50: 47 (nM) from 1 assay(s)
BindingDB:  4KNB IC50: min: 47, max: 410 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.40 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.240 
  • R-Value Observed: 0.241 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.713α = 90
b = 85.922β = 91.47
c = 156.469γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2014-04-30
    Type: Initial release
  • Version 1.1: 2024-02-28
    Changes: Data collection, Database references, Derived calculations