6J6Y

FGFR4 D2 - Fab complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Preclinical Development of U3-1784, a Novel FGFR4 Antibody Against Cancer, and Avoidance of Its On-target Toxicity.

Bartz, R.Fukuchi, K.Ohtsuka, T.Lange, T.Gruner, K.Watanabe, I.Hayashi, S.Oda, Y.Kawaida, R.Komori, H.Kashimoto, Y.Wirtz, P.Mayer, J.A.Redondo-Muller, M.Saito, S.Takahashi, M.Hanzawa, H.Imai, E.Martinez, A.Hanai, M.Haussinger, D.Chapman, R.W.Agatsuma, T.Bange, J.Abraham, R.

(2019) Mol.Cancer Ther. 18: 1832-1843

  • DOI: 10.1158/1535-7163.MCT-18-0048

  • PubMed Abstract: 
  • The FGFR4/FGF19 signaling axis is over-activated in 20% of liver tumors and currently represents a promising targetable signaling mechanism in this cancer type. However, blocking FGFR4 or FGF19 has proven challenging due to its physiological role in ...

    The FGFR4/FGF19 signaling axis is over-activated in 20% of liver tumors and currently represents a promising targetable signaling mechanism in this cancer type. However, blocking FGFR4 or FGF19 has proven challenging due to its physiological role in suppressing bile acid synthesis which leads to increased toxic bile acid plasma levels upon FGFR4 inhibition. An FGFR4-targeting antibody, U3-1784, was generated in order to investigate its suitability as a cancer treatment without major side effects. U3-1784 is a high affinity fully human antibody that was obtained by phage display technology and specifically binds to FGFR4. The antibody inhibits cell signaling by competing with various FGFs for their FGFR4 binding site thereby inhibiting receptor activation and downstream signaling via FRS2 and Erk. The inhibitory effect on tumor growth was investigated in 10 different liver cancer models in vivo. The antibody specifically slowed tumor growth of models overexpressing FGF19 by up to 90% whereas tumor growth of models not expressing FGF19 was unaffected. In cynomolgus monkeys, intravenous injection of U3-1784 caused elevated serum bile acid and liver enzyme levels indicating potential liver damage. These effects could be completely prevented by the concomitant oral treatment with the bile acid sequestrant colestyramine, which binds and eliminates bile acids in the gut. These results offer a new biomarker-driven treatment modality in liver cancer without toxicity and they suggest a general strategy for avoiding adverse events with FGFR4 inhibitors.


    Organizational Affiliation

    Technology Innovation, Medigene AG.,U3 Pharma GmbH/Daiichi-Sankyo.,Analytical & Quality Evaluation Research Laboratories, Daiichi Sankyo Co., Ltd.,Daiichi Sankyo Development.,Biologics & Immuno-Oncology Laboratories, Daiichi Sankyo Co., Ltd.,Global Project Management Department, Daiichi Sankyo Co., Ltd.,Daiichi Sankyo RD Novare Co., Ltd.,Nuffield Department of Medicine, University of Oxford.,Modality Research Laboratories, Daiichi Sankyo Co., Ltd.,Antibody Development, Lead Discovery Center GmbH abraham@lead-discovery.de.,University Hospital Clinic for Gastroenterology, Hepatology and Infectious Diseases, Heinrich Heine Universit├Ąt.,Lead Discovery Center GmbH.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fibroblast growth factor receptor 4
A, D
104Homo sapiensMutation(s): 0 
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
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Fab Heavy chain
B, E
249N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Fab light chain
C, F
243N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.193 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 104.218α = 90.00
b = 119.165β = 97.29
c = 105.099γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
XDSdata reduction
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-08-07
    Type: Initial release
  • Version 1.1: 2019-10-16
    Type: Data collection, Database references