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Updated: Apr 23, 2026

Deciphering the Structural Effects of Activating EGFR Somatic Mutations with Molecular Dynamics Simulation
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Structural analysis of the human fibroblast growth factor receptor 4 kinase

E Lesca1, A Lammens2, R Huber3

  • 1Max Planck Institut für Biochemie, Am Klopferspitz 18, D-82152 Martinsried, Germany; Proteros Biostructures GmbH, Bunsenstraße 7a, D-82152 Martinsried, Germany.

Journal of Molecular Biology
|September 16, 2014
PubMed

Insights

Structural insights into fibroblast growth factor receptor 4 (FGFR4) kinase domain were revealed. This study presents novel FGFR4 kinase domain structures, aiding in the development of targeted cancer therapies.

Area of Science:

  • Biochemistry
  • Structural Biology
  • Molecular Oncology

Background:

  • Fibroblast growth factor receptors (FGFRs) are crucial in various pathological conditions.
  • FGFR4 specifically participates in myogenesis and muscle regeneration.
  • Mutations in FGFR4 kinase domain are linked to cancers like breast cancer and rhabdomyosarcoma.

Purpose of the Study:

  • To elucidate the structural characteristics of the FGFR4 kinase domain.
  • To investigate the interaction of FGFR4 with small-molecule inhibitors.
  • To provide a basis for the rational design of novel FGFR4-targeted therapeutics.

Main Methods:

  • X-ray crystallography was employed to determine the structures.
  • Four distinct structures of the FGFR4 kinase domain were solved: apo-form and in complex with inhibitors.
  • Analysis of conformational states and inhibitor binding modes.

Main Results:

  • The apo-FGFR4 kinase domain structures exhibit an activation segment conformation distinct from other FGFRs.
  • Structures reveal molecular interactions with type I (Dovitinib) and type II (Ponatinib) inhibitors.
  • The findings highlight unique structural features of FGFR4.

Conclusions:

  • The determined structures offer unprecedented insights into FGFR4 kinase domain.
  • This structural information is vital for developing specific and effective FGFR4 inhibitors.
  • The study lays the groundwork for advancing targeted cancer therapies involving FGFR4.
Keywords:
DovitinibPonatinibautoinhibitionrhabdomyosarcomatyrosine receptor kinase

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