1F97

SOLUBLE PART OF THE JUNCTION ADHESION MOLECULE FROM MOUSE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.150 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

X-ray structure of junctional adhesion molecule: structural basis for homophilic adhesion via a novel dimerization motif.

Kostrewa, D.Brockhaus, M.D'Arcy, A.Dale, G.E.Nelboeck, P.Schmid, G.Mueller, F.Bazzoni, G.Dejana, E.Bartfai, T.Winkler, F.K.Hennig, M.

(2001) EMBO J. 20: 4391-4398

  • DOI: 10.1093/emboj/20.16.4391

  • PubMed Abstract: 
  • Junctional adhesion molecules (JAMs) are a family of immunoglobulin-like single-span transmembrane molecules that are expressed in endothelial cells, epithelial cells, leukocytes and myocardia. JAM has been suggested to contribute to the adhesive fun ...

    Junctional adhesion molecules (JAMs) are a family of immunoglobulin-like single-span transmembrane molecules that are expressed in endothelial cells, epithelial cells, leukocytes and myocardia. JAM has been suggested to contribute to the adhesive function of tight junctions and to regulate leukocyte trans migration. We describe the crystal structure of the recombinant extracellular part of mouse JAM (rsJAM) at 2.5 A resolution. rsJAM consists of two immunoglobulin-like domains that are connected by a conformationally restrained short linker. Two rsJAM molecules form a U-shaped dimer with highly complementary interactions between the N-terminal domains. Two salt bridges are formed in a complementary manner by a novel dimerization motif, R(V,I,L)E, which is essential for the formation of rsJAM dimers in solution and common to the known members of the JAM family. Based on the crystal packing and studies with mutant rsJAM, we propose a model for homophilic adhesion of JAM. In this model, U-shaped JAM dimers are oriented in cis on the cell surface and form a two-dimensional network by trans-interactions of their N-terminal domains with JAM dimers from an opposite cell surface.


    Organizational Affiliation

    F.Hoffmann-La Roche Ltd, Pharmaceutical Research, 4070 Basel, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
JUNCTION ADHESION MOLECULE
A
212Mus musculusGene Names: F11r (Jam1, Jcam, Jcam1)
Find proteins for O88792 (Mus musculus)
Go to UniProtKB:  O88792
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.150 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 42.540α = 90.00
b = 83.280β = 90.00
c = 130.640γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
SHARPphasing
XDSdata scaling
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-01-10
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance