6D1Y

Crystal structure of Tyrosine-protein kinase receptor in complex with 2,4-dichloro-N-(3-methyl-1-phenyl-1H-pyrazol-5-yl)benzamide Inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.93 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Discovery of Allosteric, Potent, Subtype Selective, and Peripherally Restricted TrkA Kinase Inhibitors.

Bagal, S.K.Omoto, K.Blakemore, D.C.Bungay, P.J.Bilsland, J.G.Clarke, P.J.Corbett, M.S.Cronin, C.N.Cui, J.J.Dias, R.Flanagan, N.J.Greasley, S.E.Grimley, R.Johnson, E.Fengas, D.Kitching, L.Kraus, M.L.McAlpine, I.Nagata, A.Waldron, G.J.Warmus, J.S.

(2019) J Med Chem 62: 247-265

  • DOI: 10.1021/acs.jmedchem.8b00280
  • Primary Citation of Related Structures:  
    6D1Y, 6D1Z, 6D20, 6D22

  • PubMed Abstract: 
  • Tropomyosin receptor kinases (TrkA, TrkB, TrkC) are activated by hormones of the neurotrophin family: nerve growth factor (NGF), brain derived neurotrophic factor (BDNF), neurotrophin 3 (NT3), and neurotrophin 4 (NT4). Moreover, the NGF antibody tanezumab has provided clinical proof of concept for inhibition of the TrkA kinase pathway in pain leading to significant interest in the development of small molecule inhibitors of TrkA ...

    Tropomyosin receptor kinases (TrkA, TrkB, TrkC) are activated by hormones of the neurotrophin family: nerve growth factor (NGF), brain derived neurotrophic factor (BDNF), neurotrophin 3 (NT3), and neurotrophin 4 (NT4). Moreover, the NGF antibody tanezumab has provided clinical proof of concept for inhibition of the TrkA kinase pathway in pain leading to significant interest in the development of small molecule inhibitors of TrkA. However, achieving TrkA subtype selectivity over TrkB and TrkC via a Type I and Type II inhibitor binding mode has proven challenging and Type III or Type IV allosteric inhibitors may present a more promising selectivity design approach. Furthermore, TrkA inhibitors with minimal brain availability are required to deliver an appropriate safety profile. Herein, we describe the discovery of a highly potent, subtype selective, peripherally restricted, efficacious, and well-tolerated series of allosteric TrkA inhibitors that culminated in the delivery of candidate quality compound 23.


    Organizational Affiliation

    Pfizer Global R&D, Groton Laboratories , Eastern Point Road , Groton , Connecticut 06340 , United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
High affinity nerve growth factor receptorA320Homo sapiensMutation(s): 0 
Gene Names: NTRK1MTCTRKTRKA
EC: 2.7.10.1
UniProt & NIH Common Fund Data Resources
Find proteins for P04629 (Homo sapiens)
Explore P04629 
Go to UniProtKB:  P04629
PHAROS:  P04629
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FQJ (Subject of Investigation/LOI)
Query on FQJ

Download Ideal Coordinates CCD File 
B [auth A]2,4-dichloro-N-(3-methyl-1-phenyl-1H-pyrazol-5-yl)benzamide
C17 H13 Cl2 N3 O
AJPLAFYBSJYISV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.93 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.24α = 90
b = 48.551β = 99.02
c = 67.335γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
MOLREPphasing
BUSTERrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-05-02
    Type: Initial release
  • Version 1.1: 2019-05-01
    Changes: Data collection, Database references