2OM5

N-Terminal Fragment of Human TAX1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.07 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.235 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The crystal structure of the ligand-binding module of human TAG-1 suggests a new mode of homophilic interaction

Mortl, M.Sonderegger, P.Diederichs, K.Welte, W.

(2007) Protein Sci. 16: 2174-2183

  • DOI: 10.1110/ps.072802707

  • PubMed Abstract: 
  • Human TAG-1 is a neural cell adhesion molecule that is crucial for the development of the nervous system during embryogenesis. It consists of six immunoglobulin-like and four fibronectin III-like domains and is anchored to the membrane by glycosylpho ...

    Human TAG-1 is a neural cell adhesion molecule that is crucial for the development of the nervous system during embryogenesis. It consists of six immunoglobulin-like and four fibronectin III-like domains and is anchored to the membrane by glycosylphosphatidylinositol. Herein we present the crystal structure of the four N-terminal immunoglobulin-like domains of TAG-1 (TAG-1(Ig1-4)), known to be important in heterophilic and homophilic macromolecular interactions. The contacts of neighboring molecules within the crystal were investigated. A comparison with the structure of the chicken ortholog resulted in an alternative mode for the molecular mechanism of homophilic TAG-1 interaction. This mode of TAG-1 homophilic interaction is based on dimer formation rather than formation of a molecular zipper as proposed for the chicken ortholog.


    Organizational Affiliation

    University of Konstanz, Department of Biology, Konstanz, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Contactin 2
A
381Homo sapiensMutation(s): 0 
Gene Names: CNTN2 (AXT, TAG1, TAX1)
Find proteins for Q02246 (Homo sapiens)
Go to Gene View: CNTN2
Go to UniProtKB:  Q02246
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.07 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.235 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 46.804α = 90.00
b = 106.916β = 90.00
c = 161.366γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
MAR345data collection
MOLREPphasing
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-11-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance
  • Version 1.2: 2017-10-18
    Type: Refinement description