4GU9

Focal adhesion kinase catalytic domain in complex with (2-Fluoro-phenyl)-(1H-pyrazolo[3,4-d]pyrimidin-4-yl)-amine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Fragment-based discovery of new highly substituted 1H-pyrrolo[2,3-b]- and 3H-imidazolo[4,5-b]-pyridines as focal adhesion kinase inhibitors.

Heinrich, T.Seenisamy, J.Emmanuvel, L.Kulkarni, S.S.Bomke, J.Rohdich, F.Greiner, H.Esdar, C.Krier, M.Gradler, U.Musil, D.

(2013) J.Med.Chem. 56: 1160-1170

  • DOI: 10.1021/jm3016014
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Focal adhesion kinase (FAK) is considered as an attractive target for oncology, and small-molecule inhibitors are reported to be in clinical testing. In a surface plasmon resonance (SPR)-mediated fragment screening campaign, we discovered bicyclic sc ...

    Focal adhesion kinase (FAK) is considered as an attractive target for oncology, and small-molecule inhibitors are reported to be in clinical testing. In a surface plasmon resonance (SPR)-mediated fragment screening campaign, we discovered bicyclic scaffolds like 1H-pyrazolo[3,4-d]pyrimidines binding to the hinge region of FAK. By an accelerated knowledge-based fragment growing approach, essential pharmacophores were added. The establishment of highly substituted unprecedented 1H-pyrrolo[2,3-b]pyridine derivatizations provided compounds with submicromolar cellular FAK inhibition potential. The combination of substituents on the bicyclic templates and the nature of the core structure itself have a significant impact on the compounds FAK selectivity. Structural analysis revealed that the appropriately substituted pyrrolo[2,3-b]pyridine induced a rare helical DFG-loop conformation. The discovered synthetic route to introduce three different substituents independently paves the way for versatile applications of the 7-azaindole core.


    Organizational Affiliation

    Merck Serono Research, Merck KGaA , 64271 Darmstadt, Germany. timo.heinrich@merckgroup.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Focal adhesion kinase 1
A, B
279Homo sapiensMutation(s): 0 
Gene 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
4GU
Query on 4GU

Download SDF File 
Download CCD File 
A, B
N-(2-fluorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
C11 H8 F N5
MEYYGZBRFGDWPZ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
4GUKd: 43000 nM BINDINGMOAD
4GUKd: 43000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.178 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 46.541α = 90.00
b = 88.288β = 90.00
c = 136.761γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
BUSTERrefinement
XSCALEdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2012-08-29 
  • Released Date: 2013-09-04 
  • Deposition Author(s): Musil, D.

Revision History 

  • Version 1.0: 2013-09-04
    Type: Initial release