4QQC

Crystal Structure of FGF Receptor (FGFR) 4 Kinase Domain in Complex with FIIN-2, an Irreversible Tyrosine Kinase Inhibitor Capable of Overcoming FGFR Kinase Gate-Keeper Mutations

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.158 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Development of covalent inhibitors that can overcome resistance to first-generation FGFR kinase inhibitors.

Tan, L., Wang, J., Tanizaki, J., Huang, Z., Aref, A.R., Rusan, M., Zhu, S.J., Zhang, Y., Ercan, D., Liao, R.G., Capelletti, M., Zhou, W., Hur, W., Kim, N., Sim, T., Gaudet, S., Barbie, D.A., Yeh, J.R., Yun, C.H., Hammerman, P.S., Mohammadi, M., Janne, P.A., Gray, N.S.

(2014) Proc.Natl.Acad.Sci.USA 111: E4869-E4877

  • DOI: 10.1073/pnas.1403438111
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • The human FGF receptors (FGFRs) play critical roles in various human cancers, and several FGFR inhibitors are currently under clinical investigation. Resistance usually results from selection for mutant kinases that are impervious to the action of th ...

    The human FGF receptors (FGFRs) play critical roles in various human cancers, and several FGFR inhibitors are currently under clinical investigation. Resistance usually results from selection for mutant kinases that are impervious to the action of the drug or from up-regulation of compensatory signaling pathways. Preclinical studies have demonstrated that resistance to FGFR inhibitors can be acquired through mutations in the FGFR gatekeeper residue, as clinically observed for FGFR4 in embryonal rhabdomyosarcoma and neuroendocrine breast carcinomas. Here we report on the use of a structure-based drug design to develop two selective, next-generation covalent FGFR inhibitors, the FGFR irreversible inhibitors 2 (FIIN-2) and 3 (FIIN-3). To our knowledge, FIIN-2 and FIIN-3 are the first inhibitors that can potently inhibit the proliferation of cells dependent upon the gatekeeper mutants of FGFR1 or FGFR2, which confer resistance to first-generation clinical FGFR inhibitors such as NVP-BGJ398 and AZD4547. Because of the conformational flexibility of the reactive acrylamide substituent, FIIN-3 has the unprecedented ability to inhibit both the EGF receptor (EGFR) and FGFR covalently by targeting two distinct cysteine residues. We report the cocrystal structure of FGFR4 with FIIN-2, which unexpectedly exhibits a "DFG-out" covalent binding mode. The structural basis for dual FGFR and EGFR targeting by FIIN3 also is illustrated by crystal structures of FIIN-3 bound with FGFR4 V550L and EGFR L858R. These results have important implications for the design of covalent FGFR inhibitors that can overcome clinical resistance and provide the first example, to our knowledge, of a kinase inhibitor that covalently targets cysteines located in different positions within the ATP-binding pocket.

    Organizational Affiliation: 

    Departments of Biological Chemistry and Molecular Pharmacology, Departments of Cancer Biology and.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fibroblast growth factor receptor 4
A
323Homo sapiensMutation(s): 1 
Gene Names: FGFR4 (JTK2, TKF)
EC: 2.7.10.1
Find proteins for P22455 (Homo sapiens)
Go to Gene View: FGFR4
Go to UniProtKB:  P22455
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
37O
Query on 37O
Download SDF File 
Download CCD File 
A
N-(4-{[3-(3,5-dimethoxyphenyl)-7-{[4-(4-methylpiperazin-1-yl)phenyl]amino}-2-oxo-3,4-dihydropyrimido[4,5-d]pyrimidin-1(2H)-yl]methyl}phenyl)propanamide
C35 H40 N8 O4
DKHGWJNITASDGF-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4
Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.158 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 139.830α = 90.00
b = 139.830β = 90.00
c = 49.486γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
HKL-2000data scaling
HKL-2000data collection
HKL-2000data reduction

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-10-29
    Type: Initial release
  • Version 1.1: 2014-11-26
    Type: Database references