4CRP

Solution structure of a TrkAIg2 domain construct for use in drug discovery


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 250 
  • Conformers Submitted: 25 
  • Selection Criteria: LOWEST ENERGY, LEAST VIOLATION 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Design and Nuclear Magnetic Resonance (NMR) Structure Determination of the Second Extracellular Immunoglobulin Tyrosine Kinase a (Trkaig2) Domain Construct for Binding Site Elucidation in Drug Discovery

Allen, S.J.Watson, J.J.Shoemark, D.K.Barua, N.U.Patel, N.K.

(2015) J.Med.Chem. 58: 767

  • DOI: 10.1021/jm501307e

  • PubMed Abstract: 
  • The tyrosine kinase A (TrkA) receptor is a validated therapeutic intervention point for a wide range of conditions. TrkA activation by nerve growth factor (NGF) binding the second extracellular immunoglobulin (TrkAIg2) domain triggers intracellular s ...

    The tyrosine kinase A (TrkA) receptor is a validated therapeutic intervention point for a wide range of conditions. TrkA activation by nerve growth factor (NGF) binding the second extracellular immunoglobulin (TrkAIg2) domain triggers intracellular signaling cascades. In the periphery, this promotes the pain phenotype and, in the brain, cell survival or differentiation. Reproducible structural information and detailed validation of protein-ligand interactions aid drug discovery. However, the isolated TrkAIg2 domain crystallizes as a β-strand-swapped dimer in the absence of NGF, occluding the binding surface. Here we report the design and structural validation by nuclear magnetic resonance spectroscopy of the first stable, biologically active construct of the TrkAIg2 domain for binding site confirmation. Our structure closely mimics the wild-type fold of TrkAIg2 in complex with NGF ( 1WWW .pdb), and the (1)H-(15)N correlation spectra confirm that both NGF and a competing small molecule interact at the known binding interface in solution.


    Organizational Affiliation

    School of Clinical Sciences, Level 2, Learning and Research, Southmead Hospital , Bristol BS10 5NB, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HIGH AFFINITY NERVE GROWTH FACTOR RECEPTOR
A
107Homo sapiensGene Names: NTRK1 (MTC, TRK, TRKA)
EC: 2.7.10.1
Find proteins for P04629 (Homo sapiens)
Go to Gene View: NTRK1
Go to UniProtKB:  P04629
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 250 
  • Conformers Submitted: 25 
  • Selection Criteria: LOWEST ENERGY, LEAST VIOLATION 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-01-14
    Type: Initial release
  • Version 1.1: 2015-02-04
    Type: Database references
  • Version 1.2: 2016-04-27
    Type: Atomic model, Derived calculations, Other