Crystal structure of Fibroblast Growth Factor 19

Experimental Data Snapshot

  • Resolution: 1.30 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.181 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


The crystal structure of fibroblast growth factor (FGF) 19 reveals novel features of the FGF family and offers a structural basis for its unusual receptor affinity.

Harmer, N.J.Pellegrini, L.Chirgadze, D.Fernandez-Recio, J.Blundell, T.L.

(2004) Biochemistry 43: 629-640

  • DOI: https://doi.org/10.1021/bi035320k
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The 22 members of the FGF family have been implicated in cell proliferation, differentiation, survival, and migration. They are required for both development and maintenance of vertebrates, demonstrating an exquisite pattern of affinities for both protein and proteoglycan receptors. FGF19, one of the most divergent human FGFs, is unique in binding solely to one receptor, FGFR4. We have used molecular replacement to solve the crystal structure of FGF19 at 1.3 A resolution using five superimposed FGF structures as the search model. The structure shows that two novel disulfide bonds found in FGF19, one of which appears to be conserved among several of the other FGFs, stabilize extended loops. The key heparin-binding loops of FGF19 have radically different conformations and charge patterns, compared to other FGFs, correlating with the unusually low affinity of FGF19 for heparin. A model for the complex of FGF19 with FGFR4 demonstrates that unique sequences in both FGF19 and FGFR4 are key to the formation of the complex. The structure therefore offers a clear explanation for the unusual affinity of FGF19 for FGFR4 alone.

  • Organizational Affiliation

    Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom. nic@cryst.bioc.cam.ac.uk

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Fibroblast growth factor-19162Homo sapiensMutation(s): 0 
Gene Names: FGF19
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for O95750 (Homo sapiens)
Explore O95750 
Go to UniProtKB:  O95750
PHAROS:  O95750
GTEx:  ENSG00000162344 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO95750
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.30 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.181 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.573α = 90
b = 67.573β = 90
c = 193.374γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-01-27
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.3: 2014-04-16
    Changes: Data collection
  • Version 1.4: 2023-08-16
    Changes: Data collection, Database references, Derived calculations, Refinement description