3FUB

Crystal structure of GDNF-GFRalpha1 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Comparison of GFL-GFRalpha complexes: further evidence relating GFL bend angle to RET signalling

Parkash, V.Goldman, A.

(2009) Acta Crystallogr.,Sect.F 65: 551-558

  • DOI: 10.1107/S1744309109017722

  • PubMed Abstract: 
  • Glial cell line-derived neurotrophic factor (GDNF) activates the receptor tyrosine kinase RET by binding to the GDNF-family receptor alpha1 (GFRalpha1) and forming the GDNF(2)-GFRalpha1(2)-RET(2) heterohexamer complex. A previous crystal structure of ...

    Glial cell line-derived neurotrophic factor (GDNF) activates the receptor tyrosine kinase RET by binding to the GDNF-family receptor alpha1 (GFRalpha1) and forming the GDNF(2)-GFRalpha1(2)-RET(2) heterohexamer complex. A previous crystal structure of the GDNF(2)-GFRalpha1(2) complex (PDB code 2v5e) suggested that differences in signalling in GDNF-family ligand (GFL) complexes might arise from differences in the bend angle between the two monomers in the GFL homodimer. Here, a 2.35 A resolution structure of the GDNF(2)-GFRalpha1(2) complex crystallized with new cell dimensions is reported. The structure was refined to a final R factor of 22.5% (R(free) = 28%). The structures of both biological tetrameric complexes in the asymmetric unit are very similar to 2v5e and different from the artemin-GFRalpha3 structure, even though there is a small change in the structure of the GDNF. By comparison of all known GDNF and artemin structures, it is concluded that GDNF is more bent and more flexible than artemin and that this may be related to RET signalling. Comparisons also suggest that the differences between artemin and GDNF arise from the increased curvature of the artemin ;fingers', which both increases the buried surface area in the monomer-monomer interface and changes the intermonomer bend angle. From sequence comparison, it is suggested that neuturin (the second GFL) adopts an artemin-like conformation, while persephin has a different conformation to the other three.


    Organizational Affiliation

    Institute of Biotechnology, University of Helsinki, Helsinki, Finland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GDNF family receptor alpha-1
A, C
281Rattus norvegicusMutation(s): 0 
Gene Names: Gfra1 (Gdnfra, Retl1, Trnr1)
Find proteins for Q62997 (Rattus norvegicus)
Go to UniProtKB:  Q62997
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Glial cell line-derived neurotrophic factor
B, D
134Homo sapiensMutation(s): 0 
Gene Names: GDNF
Find proteins for P39905 (Homo sapiens)
Go to Gene View: GDNF
Go to UniProtKB:  P39905
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
C
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
EDO
Query on EDO

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Download CCD File 
A, B
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
B, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.226 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 45.200α = 90.00
b = 84.100β = 96.10
c = 179.200γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
PHASERphasing
MxCuBEdata collection
XDSdata reduction
XSCALEdata scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-06-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Non-polymer description, Version format compliance
  • Version 1.2: 2018-01-24
    Type: Structure summary