1FQ9

CRYSTAL STRUCTURE OF A TERNARY FGF2-FGFR1-HEPARIN COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of a ternary FGF-FGFR-heparin complex reveals a dual role for heparin in FGFR binding and dimerization.

Schlessinger, J.Plotnikov, A.N.Ibrahimi, O.A.Eliseenkova, A.V.Yeh, B.K.Yayon, A.Linhardt, R.J.Mohammadi, M.

(2000) Mol.Cell 6: 743-750


  • PubMed Abstract: 
  • The crystal structure of a dimeric 2:2:2 FGF:FGFR:heparin ternary complex at 3 A resolution has been determined. Within each 1:1 FGF:FGFR complex, heparin makes numerous contacts with both FGF and FGFR, thereby augmenting FGF-FGFR binding. Heparin al ...

    The crystal structure of a dimeric 2:2:2 FGF:FGFR:heparin ternary complex at 3 A resolution has been determined. Within each 1:1 FGF:FGFR complex, heparin makes numerous contacts with both FGF and FGFR, thereby augmenting FGF-FGFR binding. Heparin also interacts with FGFR in the adjoining 1:1 FGF:FGFR complex to promote FGFR dimerization. The 6-O-sulfate group of heparin plays a pivotal role in mediating both interactions. The unexpected stoichiometry of heparin binding in the structure led us to propose a revised model for FGFR dimerization. Biochemical data in support of this model are also presented. This model provides a structural basis for FGFR activation by small molecule heparin analogs and may facilitate the design of heparin mimetics capable of modulating FGF signaling.


    Organizational Affiliation

    Department of Pharmacology, New York University School of Medicine, New York, New York 10016, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FIBROBLAST GROWTH FACTOR 2
A, B
132Homo sapiensMutation(s): 2 
Gene Names: FGF2 (FGFB)
Find proteins for P09038 (Homo sapiens)
Go to Gene View: FGF2
Go to UniProtKB:  P09038
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
FIBROBLAST GROWTH FACTOR RECEPTOR 1
C, D
225Homo sapiensMutation(s): 1 
Gene Names: FGFR1 (BFGFR, CEK, FGFBR, FLG, FLT2, HBGFR)
EC: 2.7.10.1
Find proteins for P11362 (Homo sapiens)
Go to Gene View: FGFR1
Go to UniProtKB:  P11362
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SGN
Query on SGN

Download SDF File 
Download CCD File 
A, B
N,O6-DISULFO-GLUCOSAMINE
C6 H13 N O11 S2
DQTRACMFIGDHSN-UKFBFLRUSA-N
 Ligand Interaction
UAP
Query on UAP

Download SDF File 
Download CCD File 
A, B
4-deoxy-2-O-sulfo-alpha-L-threo-hex-4-enopyranuronic acid
C6 H8 O9 S
VJIMUKBSNUBECH-YKKSOZKNSA-N
 Ligand Interaction
IDU
Query on IDU

Download SDF File 
Download CCD File 
A
2-O-sulfo-beta-L-altropyranuronic acid
C6 H10 O10 S
COJBCAMFZDFGFK-TVSWGBMESA-N
 Ligand Interaction
IDS
Query on IDS

Download SDF File 
Download CCD File 
A, B
2-O-sulfo-alpha-L-idopyranuronic acid
O2-SULFO-GLUCURONIC ACID
C6 H10 O10 S
COJBCAMFZDFGFK-VCSGLWQLSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.229 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 98.888α = 90.00
b = 98.888β = 90.00
c = 196.292γ = 90.00
Software Package:
Software NamePurpose
CNSphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-09-27
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance