Crystal structure of apo TrkB kinase domain

Experimental Data Snapshot

  • Resolution: 1.70 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.181 

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This is version 1.4 of the entry. See complete history


The Crystal Structures of Trka and Trkb Suggest Key Regions for Achieving Selective Inhibition.

Bertrand, T.Kothe, M.Liu, J.Dupuy, A.Rak, A.Berne, P.F.Davis, S.Gladysheva, T.Valtre, C.Crenne, J.Y.Mathieu, M.

(2012) J Mol Biol 423: 439

  • DOI: https://doi.org/10.1016/j.jmb.2012.08.002
  • Primary Citation of Related Structures:  
    4ASZ, 4AT3, 4AT4, 4AT5, 4F0I

  • PubMed Abstract: 

    The Trk family of neurotrophin receptors, which includes the three highly homologous proteins TrkA, TrkB and TrkC, is strongly associated with central and peripheral nervous system processes. Trk proteins are also of interest in oncology, since Trk activation has been observed in several cancer types. While Trk kinases are attractive oncology targets, selectivity might be more of an issue than for other kinases due to potential CNS side effects if several Trk kinases are simultaneously targeted. In order to address this issue, we present here the first structures of human TrkA and TrkB kinase domains and three complexes between TrkB and Trk inhibitors. These structures reveal different conformations of the kinase domain and suggest new regions of selectivity among the Trk family.

  • Organizational Affiliation

    Department of Structure, Design, and Informatics, Sanofi, 13 Quai Jules Guesde, Vitry-sur-Seine, 94403 Cedex, France. thomas.bertrand@sanofi.com

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BDNF/NT-3 GROWTH FACTORS RECEPTOR299Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q16620 (Homo sapiens)
Explore Q16620 
Go to UniProtKB:  Q16620
PHAROS:  Q16620
GTEx:  ENSG00000148053 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ16620
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.70 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.181 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.993α = 90
b = 96.777β = 90
c = 46.378γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-08-22
    Type: Initial release
  • Version 1.1: 2012-10-10
    Changes: Database references
  • Version 1.2: 2019-04-03
    Changes: Data collection, Experimental preparation, Other
  • Version 1.3: 2019-04-24
    Changes: Data collection, Source and taxonomy
  • Version 1.4: 2023-12-20
    Changes: Data collection, Database references, Other, Refinement description