1NUN

Crystal Structure Analysis of the FGF10-FGFR2b Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.239 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis by which alternative splicing confers specificity in fibroblast growth factor receptors.

Yeh, B.K.Igarashi, M.Eliseenkova, A.V.Plotnikov, A.N.Sher, I.Ron, D.Aaronson, S.A.Mohammadi, M.

(2003) Proc.Natl.Acad.Sci.USA 100: 2266-2271

  • DOI: 10.1073/pnas.0436500100

  • PubMed Abstract: 
  • Binding specificity between fibroblast growth factors (FGFs) and their receptors (FGFRs) is essential for mammalian development and is regulated primarily by two alternatively spliced exons, IIIb ("b") and IIIc ("c"), that encode the second half of I ...

    Binding specificity between fibroblast growth factors (FGFs) and their receptors (FGFRs) is essential for mammalian development and is regulated primarily by two alternatively spliced exons, IIIb ("b") and IIIc ("c"), that encode the second half of Ig-like domain 3 (D3) of FGFRs. FGF7 and FGF10 activate only the b isoform of FGFR2 (FGFR2b). Here, we report the crystal structure of the ligand-binding portion of FGFR2b bound to FGF10. Unique contacts between divergent regions in FGF10 and two b-specific loops in D3 reveal the structural basis by which alternative splicing provides FGF10-FGFR2b specificity. Structure-based mutagenesis of FGF10 confirms the importance of the observed contacts for FGF10 biological activity. Interestingly, FGF10 binding induces a previously unobserved rotation of receptor Ig domain 2 (D2) to introduce specific contacts with FGF10. Hence, both D2 and D3 of FGFR2b contribute to the exceptional specificity between FGF10 and FGFR2b. We propose that ligand-induced conformational change in FGFRs may also play an important role in determining specificity for other FGF-FGFR complexes.


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fibroblast growth factor-10
A
145Homo sapiensMutation(s): 0 
Gene Names: FGF10
Find proteins for O15520 (Homo sapiens)
Go to Gene View: FGF10
Go to UniProtKB:  O15520
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
fibroblast growth factor receptor 2 isoform 2
B
230Homo sapiensMutation(s): 0 
Gene Names: FGFR2 (BEK, KGFR, KSAM)
EC: 2.7.10.1
Find proteins for P21802 (Homo sapiens)
Go to Gene View: FGFR2
Go to UniProtKB:  P21802
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
15P
Query on 15P

Download SDF File 
Download CCD File 
B
POLYETHYLENE GLYCOL (N=34)
PEG 1500
C69 H140 O35
VUYXVWGKCKTUMF-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.239 
  • Space Group: P 64 2 2
Unit Cell:
Length (Å)Angle (°)
a = 113.930α = 90.00
b = 113.930β = 90.00
c = 164.852γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
CNSphasing
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-02-11
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance