1E0O

CRYSTAL STRUCTURE OF A TERNARY FGF1-FGFR2-HEPARIN COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.274 
  • R-Value Observed: 0.274 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Crystal Structure of Fibroblast Growth Factor Receptor Ectodomain Bound to Ligand and Heparin

Pellegrini, L.Burke, D.F.von Delft, F.Mulloy, B.Blundell, T.L.

(2000) Nature 407: 1029

  • DOI: 10.1038/35039551
  • Primary Citation of Related Structures:  
    1E0O

  • PubMed Abstract: 
  • Fibroblast growth factors (FGFs) are a large family of structurally related proteins with a wide range of physiological and pathological activities. Signal transduction requires association of FGF with its receptor tyrosine kinase (FGFR) and heparan sulphate proteoglycan in a specific complex on the cell surface ...

    Fibroblast growth factors (FGFs) are a large family of structurally related proteins with a wide range of physiological and pathological activities. Signal transduction requires association of FGF with its receptor tyrosine kinase (FGFR) and heparan sulphate proteoglycan in a specific complex on the cell surface. Direct involvement of the heparan sulphate glycosaminoglycan polysaccharide in the molecular association between FGF and its receptor is essential for biological activity. Although crystal structures of binary complexes of FGF-heparin and FGF-FGFR have been described, the molecular architecture of the FGF signalling complex has not been elucidated. Here we report the crystal structure of the FGFR2 ectodomain in a dimeric form that is induced by simultaneous binding to FGF1 and a heparin decasaccharide. The complex is assembled around a central heparin molecule linking two FGF1 ligands into a dimer that bridges between two receptor chains. The asymmetric heparin binding involves contacts with both FGF1 molecules but only one receptor chain. The structure of the FGF1-FGFR2-heparin ternary complex provides a structural basis for the essential role of heparan sulphate in FGF signalling.


    Organizational Affiliation

    Department of Biochemistry, University of Cambridge, UK. luca@cryst.bioc.cam.ac.uk



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
FIBROBLAST GROWTH FACTOR 1A, C140Homo sapiensMutation(s): 0 
Gene Names: FGF1FGFA
UniProt & NIH Common Fund Data Resources
Find proteins for P05230 (Homo sapiens)
Explore P05230 
Go to UniProtKB:  P05230
PHAROS:  P05230
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
FIBROBLAST GROWTH FACTOR RECEPTOR 2B, D219Homo sapiensMutation(s): 0 
Gene Names: FGFR2BEKKGFRKSAM
EC: 2.7.10.1
UniProt & NIH Common Fund Data Resources
Find proteins for P21802 (Homo sapiens)
Explore P21802 
Go to UniProtKB:  P21802
PHAROS:  P21802
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 3
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranoseE10N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G04280SJ
GlyCosmos:  G04280SJ
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.274 
  • R-Value Observed: 0.274 
  • Space Group: P 62
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 195.9α = 90
b = 195.9β = 90
c = 68.86γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
SHARPphasing
SHELXphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-10-23
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-12-13
    Changes: Database references, Source and taxonomy, Structure summary
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary