Structural basis for the auto-inhibition of c-Abl tyrosine kinase

Experimental Data Snapshot

  • Resolution: 1.75 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.210 

Starting Model: experimental
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Structural basis for the autoinhibition of c-Abl tyrosine kinase

Nagar, B.Hantschel, O.Young, M.A.Scheffzek, K.Veach, D.Bornmann, W.Clarkson, B.Superti-Furga, G.Kuriyan, J.

(2003) Cell 112: 859-871

  • DOI: https://doi.org/10.1016/s0092-8674(03)00194-6
  • Primary Citation of Related Structures:  
    1OPJ, 1OPK, 1OPL

  • PubMed Abstract: 

    c-Abl is normally regulated by an autoinhibitory mechanism, the disruption of which leads to chronic myelogenous leukemia. The details of this mechanism have been elusive because c-Abl lacks a phosphotyrosine residue that triggers the assembly of the autoinhibited form of the closely related Src kinases by internally engaging the SH2 domain. Crystal structures of c-Abl show that the N-terminal myristoyl modification of c-Abl 1b binds to the kinase domain and induces conformational changes that allow the SH2 and SH3 domains to dock onto it. Autoinhibited c-Abl forms an assembly that is strikingly similar to that of inactive Src kinases but with specific differences that explain the differential ability of the drug STI-571/Gleevec/imatinib (STI-571) to inhibit the catalytic activity of Abl, but not that of c-Src.

  • Organizational Affiliation

    Howard Hughes Medical Institute and Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Proto-oncogene tyrosine-protein kinase ABL1
A, B
293Mus musculusMutation(s): 0 
Gene Names: ABL1
Find proteins for P00520 (Mus musculus)
Explore P00520 
Go to UniProtKB:  P00520
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00520
Sequence Annotations
  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
STI BindingDB:  1OPJ Ki: min: 13, max: 7000 (nM) from 5 assay(s)
Kd: min: 1, max: 1.00e+4 (nM) from 35 assay(s)
IC50: min: 1.1, max: 1.00e+4 (nM) from 60 assay(s)
EC50: min: 34, max: 1000 (nM) from 4 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 1.75 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.210 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.844α = 67.91
b = 63.507β = 79.76
c = 64.051γ = 84.88
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-04-08
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-08-16
    Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary
  • Version 1.4: 2024-03-13
    Changes: Source and taxonomy, Structure summary