4AOJ

Human TrkA in complex with the inhibitor AZ-23


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Discovery of Disubstituted Imidazo[4,5-B]Pyridines and Purines as Potent Trka Inhibitors

Wang, T.Lamb, M.L.Block, M.H.Davies, A.M.Han, Y.Hoffmann, E.Ioannidis, S.Josey, J.A.Liu, Z.Lyne, P.D.Macintyre, T.Mohr, P.J.Omer, C.A.Sjogren, T.Thress, K.Wang, B.Wang, H.Yu, D.Zhang, H.

(2012) Acs Med.Chem.Lett. 3: 705

  • DOI: 10.1021/ml300074j

  • PubMed Abstract: 
  • Trk receptor tyrosine kinases have been implicated in cancer and pain. A crystal structure of TrkA with AZ-23 (1a) was obtained, and scaffold hopping resulted in two 5/6-bicyclic series comprising either imidazo[4,5-b]pyridines or purines. Further op ...

    Trk receptor tyrosine kinases have been implicated in cancer and pain. A crystal structure of TrkA with AZ-23 (1a) was obtained, and scaffold hopping resulted in two 5/6-bicyclic series comprising either imidazo[4,5-b]pyridines or purines. Further optimization of these two fusion series led to compounds with subnanomolar potencies against TrkA kinase in cellular assays. Antitumor effects in a TrkA-driven mouse allograft model were demonstrated with compounds 2d and 3a.


    Organizational Affiliation

    Array BioPharma Inc. , 3200 Walnut Street, Boulder, Colorado 80301, United States.,Discovery Sciences, Innovative Medicines, AstraZeneca , Pepparedsleden S431 83 Mölndal, Sweden.,Oncology Innovative Medicines Unit, AstraZeneca R&D Boston , 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HIGH AFFINITY NERVE GROWTH FACTOR RECEPTOR
A, B, C
329Homo sapiensMutation(s): 0 
Gene 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
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, C
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
V4Z
Query on V4Z

Download SDF File 
Download CCD File 
A, B, C
5-chloranyl-N2-[(1S)-1-(5-fluoranylpyridin-2-yl)ethyl]-N4-(3-propan-2-yloxy-1H-pyrazol-5-yl)pyrimidine-2,4-diamine
C17 H19 Cl F N7 O
LBVKEEFIPBQIMD-JTQLQIEISA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.220 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 130.727α = 90.00
b = 158.419β = 90.00
c = 152.577γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
MOLREPphasing
REFMACrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-08-15
    Type: Initial release
  • Version 1.1: 2012-10-31
    Type: Database references
  • Version 1.2: 2014-06-18
    Type: Database references
  • Version 1.3: 2019-05-08
    Type: Data collection, Experimental preparation, Other