2YD5

Crystal structure of the N-terminal Ig1-2 module of Human Receptor Protein Tyrosine Phosphatase LAR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Proteoglycan-Specific Molecular Switch for Rptp Sigma Clustering and Neuronal Extension.

Coles, C.H.Shen, Y.Tenney, A.P.Siebold, C.Sutton, G.C.Lu, W.Gallagher, J.T.Jones, E.Y.Flanagan, J.G.Aricescu, A.R.

(2011) Science 332: 484

  • DOI: 10.1126/science.1200840
  • Primary Citation of Related Structures:  2YD1, 2YD2, 2YD3, 2YD4, 2YD6, 2YD7, 2YD8, 2YD9

  • PubMed Abstract: 
  • Heparan and chondroitin sulfate proteoglycans (HSPGs and CSPGs, respectively) regulate numerous cell surface signaling events, with typically opposite effects on cell function. CSPGs inhibit nerve regeneration through receptor protein tyrosine phosph ...

    Heparan and chondroitin sulfate proteoglycans (HSPGs and CSPGs, respectively) regulate numerous cell surface signaling events, with typically opposite effects on cell function. CSPGs inhibit nerve regeneration through receptor protein tyrosine phosphatase sigma (RPTPσ). Here we report that RPTPσ acts bimodally in sensory neuron extension, mediating CSPG inhibition and HSPG growth promotion. Crystallographic analyses of a shared HSPG-CSPG binding site reveal a conformational plasticity that can accommodate diverse glycosaminoglycans with comparable affinities. Heparan sulfate and analogs induced RPTPσ ectodomain oligomerization in solution, which was inhibited by chondroitin sulfate. RPTPσ and HSPGs colocalize in puncta on sensory neurons in culture, whereas CSPGs occupy the extracellular matrix. These results lead to a model where proteoglycans can exert opposing effects on neuronal extension by competing to control the oligomerization of a common receptor.


    Organizational Affiliation

    Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, OX3 7BN, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RECEPTOR-TYPE TYROSINE-PROTEIN PHOSPHATASE F
A
214Homo sapiensGene Names: PTPRF (LAR)
EC: 3.1.3.48
Find proteins for P10586 (Homo sapiens)
Go to Gene View: PTPRF
Go to UniProtKB:  P10586
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.196 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 76.950α = 90.00
b = 76.950β = 90.00
c = 68.740γ = 120.00
Software Package:
Software NamePurpose
xia2data scaling
PHENIXrefinement
xia2data reduction
PHASERphasing
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-04-13
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance