4I4E

Structure of Focal Adhesion Kinase catalytic domain in complex with hinge binding pyrazolobenzothiazine compound.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.165 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure-based discovery of cellular-active allosteric inhibitors of FAK.

Tomita, N.Hayashi, Y.Suzuki, S.Oomori, Y.Aramaki, Y.Matsushita, Y.Iwatani, M.Iwata, H.Okabe, A.Awazu, Y.Isono, O.Skene, R.J.Hosfield, D.J.Miki, H.Kawamoto, T.Hori, A.Baba, A.

(2013) Bioorg.Med.Chem.Lett. 23: 1779-1785

  • DOI: 10.1016/j.bmcl.2013.01.047
  • Primary Citation of Related Structures:  4I4F

  • PubMed Abstract: 
  • In order to develop potent and selective focal adhesion kinase (FAK) inhibitors, synthetic studies on pyrazolo[4,3-c][2,1]benzothiazines targeted for the FAK allosteric site were carried out. Based on the X-ray structural analysis of the co-crystal o ...

    In order to develop potent and selective focal adhesion kinase (FAK) inhibitors, synthetic studies on pyrazolo[4,3-c][2,1]benzothiazines targeted for the FAK allosteric site were carried out. Based on the X-ray structural analysis of the co-crystal of the lead compound, 8-(4-ethylphenyl)-5-methyl-1,5-dihydropyrazolo[4,3-c][2,1]benzothiazine 4,4-dioxide 1 with FAK, we designed and prepared 1,5-dimethyl-1,5-dihydropyrazolo[4,3-c][2,1]benzothiazin derivatives which selectively inhibited kinase activity of FAK without affecting seven other kinases. The optimized compound, N-(4-tert-butylbenzyl)-1,5-dimethyl-1,5-dihydropyrazolo[4,3-c][2,1]benzothiazin-8-amine 4,4-dioxide 30 possessed significant FAK kinase inhibitory activities both in cell-free (IC50=0.64μM) and in cellular assays (IC50=7.1μM). These results clearly demonstrated a potential of FAK allosteric inhibitors as antitumor agents.


    Organizational Affiliation

    Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd, 26-1 Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa 251-8555, Japan. naoki.tomita@takeda.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Focal adhesion kinase 1
A
281Homo sapiensGene Names: PTK2 (FAK, FAK1)
EC: 2.7.10.2
Find proteins for Q05397 (Homo sapiens)
Go to Gene View: PTK2
Go to UniProtKB:  Q05397
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1BQ
Query on 1BQ

Download SDF File 
Download CCD File 
A
[4-(2-hydroxyethyl)piperidin-1-yl][4-(5-methyl-4,4-dioxido-1,5-dihydropyrazolo[4,3-c][2,1]benzothiazin-8-yl)phenyl]methanone
C24 H26 N4 O4 S
FADYFQASOSLUAS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
1BQIC50: 500 nM BINDINGMOAD
1BQIC50: 500 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.165 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 45.584α = 90.00
b = 47.339β = 98.99
c = 62.686γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing
HKL-2000data collection
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-06
    Type: Initial release
  • Version 1.1: 2013-04-24
    Type: Database references