Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 34.35 kDa 
• Atom Count: 2785 
• Residue Count: 289 
• Unique protein chains: 1

4ASZ

Crystal structure of apo TrkB kinase domain

• DOI: 10.2210/pdb4ASZ/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2012-05-03 Released: 2012-08-22 
• Deposition Author(s): Bertrand, T., Kothe, M., Liu, J., Dupuy, A., Rak, A., Berne, P.F., Davis, S., Gladysheva, T., Valtre, C., Crenne, J.Y., Mathieu, M.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.203 
• R-Value Work: 0.178 
• R-Value Observed: 0.181 

Literature

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

• PubMed: 22902478 
• DOI: 10.1016/j.jmb.2012.08.002
• Primary Citation of Related Structures:  
  4F0I, 4ASZ, 4AT3, 4AT4, 4AT5


• 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. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BDNF/NT-3 GROWTH FACTORS RECEPTOR	A	299	Homo sapiens	Mutation(s): 0  Gene Names: NTRK2, TRKB EC: 2.7.10.1
Find proteins for Q16620 (Homo sapiens) Explore Q16620  Go to UniProtKB:  Q16620
NIH Common Fund Data Resources
PHAROS:  Q16620 GTEx:  ENSG00000148053

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• 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 = 86.993	α = 90
b = 96.777	β = 90
c = 46.378	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2012-05-03 
• Released Date: 2012-08-22 
Deposition Author(s): Bertrand, T., Kothe, M., Liu, J., Dupuy, A., Rak, A., Berne, P.F., Davis, S., Gladysheva, T., Valtre, C., Crenne, J.Y., Mathieu, M.

Revision History 

• 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