Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 18426.97 
• Atom Count: 1010 
• Residue Count: 162 
• Unique protein chains: 1

1PWA

Crystal structure of Fibroblast Growth Factor 19

• DOI: 10.2210/pdb1PWA/pdb

• Classification: HORMONE/GROWTH FACTOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2003-07-01 Released: 2004-01-27 
• Deposition Author(s): Harmer, N.J., Pellegrini, L., Chirgadze, D., Fernandez-Recio, J., Blundell, T.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.3 Å
• R-Value Free: 0.195 
• R-Value Work: 0.180 

Literature

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

• PubMed: 14730967 
• DOI: 10.1021/bi035320k


• 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.

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Organizational Affiliation: 

Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Fibroblast growth factor-19	A	162	Homo sapiens	Mutation(s): 0  Gene Names: FGF19
Find proteins for O95750 (Homo sapiens) Go to Gene View: FGF19 Go to UniProtKB:  O95750

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
SO4	A	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	A	GLYCEROL GLYCERIN; PROPANE-1,2,3-TRIOL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
TRS	A	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL TRIS BUFFER C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.3 Å
• R-Value Free: 0.195 
• R-Value Work: 0.180 
• Space Group: H 3 2

Unit Cell:

Length (Å)	Angle (°)
a = 67.573	α = 90.00
b = 67.573	β = 90.00
c = 193.374	γ = 120.00

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
AMoRE	phasing
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-07-01 
• Released Date: 2004-01-27 
• Deposition Author(s): Harmer, N.J., Pellegrini, L., Chirgadze, D., Fernandez-Recio, J., Blundell, T.L.

Revision History 

• Version 1.0: 2004-01-27
  Type: Initial release
• Version 1.1: 2008-04-29
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Non-polymer description, Version format compliance
• Version 1.3: 2014-04-16
  Type: Data collection