Insulin receptor kinase complexed with an inhibitor

Experimental Data Snapshot

  • Resolution: 2.10 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.207 

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Ligand Structure Quality Assessment 

This is version 1.3 of the entry. See complete history


Discovery of 4,6-bis-anilino-1H-pyrrolo[2,3-d]pyrimidines: Potent inhibitors of the IGF-1R receptor tyrosine kinase.

Chamberlain, S.D.Wilson, J.W.Deanda, F.Patnaik, S.Redman, A.M.Yang, B.Shewchuk, L.Sabbatini, P.Leesnitzer, M.A.Groy, A.Atkins, C.Gerding, R.Hassell, A.M.Lei, H.Mook, R.A.Moorthy, G.Rowand, J.L.Stevens, K.L.Kumar, R.Shotwell, J.B.

(2009) Bioorg Med Chem Lett 19: 469-473

  • DOI: https://doi.org/10.1016/j.bmcl.2008.11.046
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The evaluation of a series of 4,6-bis-anilino-1H-pyrrolo[2,3-d]pyrimidines as inhibitors of the IGF-1R (IGF-IR) receptor tyrosine kinase is reported. Examples demonstrate nanomolar potencies in in vitro enzyme and mechanistic cellular assays as well as promising in vivo pharmacokinetics in rat.

  • Organizational Affiliation

    GlaxoSmithKline, Oncology R&D, 5 Moore Drive, 3.4184.4B, PO Box 13398, Research Triangle Park, NC 27709-3398, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Insulin receptor307Homo sapiensMutation(s): 2 
Gene Names: INSR
UniProt & NIH Common Fund Data Resources
Find proteins for P06213 (Homo sapiens)
Explore P06213 
Go to UniProtKB:  P06213
GTEx:  ENSG00000171105 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP06213
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on GS2

Download Ideal Coordinates CCD File 
B [auth A]2-[(2-{[1-(N,N-dimethylglycyl)-5-methoxy-1H-indol-6-yl]amino}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]-6-fluoro-N-methylbenzamide
C27 H27 F N8 O3
Binding Affinity Annotations 
IDSourceBinding Affinity
GS2 Binding MOAD:  3EKK IC50: 2 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.10 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.207 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.251α = 90
b = 70.487β = 90
c = 88.6γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2008-12-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2021-10-20
    Changes: Database references, Derived calculations
  • Version 1.3: 2023-08-30
    Changes: Data collection, Refinement description