6IG8 | pdb_00006ig8

Crystal structure of CSF-1R kinase domain with a small molecular inhibitor, JTE-952


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 
    0.192 (Depositor), 0.200 (DCC) 
  • R-Value Work: 
    0.156 (Depositor), 0.170 (DCC) 
  • R-Value Observed: 
    0.158 (Depositor) 

Starting Model: experimental
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Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted A7OClick on this verticalbar to view details

This is version 1.1 of the entry. See complete history


Literature

Discovery of a novel azetidine scaffold for colony stimulating factor-1 receptor (CSF-1R) Type II inhibitors by the use of docking models.

Ikegashira, K.Ikenogami, T.Yamasaki, T.Hase, Y.Yamaguchi, T.Inagaki, K.Doi, S.Adachi, T.Koga, Y.Hashimoto, H.

(2019) Bioorg Med Chem Lett 29: 115-118

  • DOI: https://doi.org/10.1016/j.bmcl.2018.10.051
  • Primary Citation of Related Structures:  
    6IG8

  • PubMed Abstract: 

    We report the discovery of a novel azetidine scaffold for colony stimulating factor-1 receptor (CSF-1R) Type II inhibitors by using a structure-based drug design (SBDD) based on a docking model. The work leads to the representative compound 4a with high CSF-1R inhibitory activity (IC 50  = 9.1 nM). The obtained crystal structure of an azetidine compound with CSF-1R, which matched our predicted docking model, demonstrates that the azetidine compounds bind to the DFG-out conformation of the protein as a Type II inhibitor.


  • Organizational Affiliation

    Central Pharmaceutical Research Institute, Japan Tobacco Inc., 1-1, Murasaki-cho, Takatsuki, Osaka 569-1125, Japan.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Macrophage colony-stimulating factor 1 receptor324Homo sapiensMutation(s): 1 
Gene Names: CSF1RFMS
EC: 2.7.10.1
UniProt & NIH Common Fund Data Resources
Find proteins for P07333 (Homo sapiens)
Explore P07333 
Go to UniProtKB:  P07333
PHAROS:  P07333
GTEx:  ENSG00000182578 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP07333
Sequence Annotations
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  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
A7O BindingDB:  6IG8 IC50: 14 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free:  0.192 (Depositor), 0.200 (DCC) 
  • R-Value Work:  0.156 (Depositor), 0.170 (DCC) 
  • R-Value Observed: 0.158 (Depositor) 
Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.52α = 90
b = 62.52β = 90
c = 185.31γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
PDB_EXTRACTdata extraction
REFMACphasing

Structure Validation

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Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted A7OClick on this verticalbar to view details

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-08-07
    Type: Initial release
  • Version 1.1: 2023-11-22
    Changes: Data collection, Database references, Derived calculations, Refinement description