1BQS

THE CRYSTAL STRUCTURE OF MUCOSAL ADDRESSIN CELL ADHESION MOLECULE-1 (MADCAM-1)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.223 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of immunoglobulin superfamily domains 1 and 2 of MAdCAM-1 reveals novel features important for integrin recognition.

Tan, K.Casasnovas, J.M.Liu, J.H.Briskin, M.J.Springer, T.A.Wang, J.H.

(1998) Structure 6: 793-801


  • PubMed Abstract: 
  • Mucosal addressin cell adhesion molecule 1 (MAdCAM-1) is a cell adhesion molecule that is expressed on the endothelium in mucosa, and guides the specific homing of lymphocytes into mucosal tissues. MAdCAM-1 belongs to a subclass of the immunoglobulin ...

    Mucosal addressin cell adhesion molecule 1 (MAdCAM-1) is a cell adhesion molecule that is expressed on the endothelium in mucosa, and guides the specific homing of lymphocytes into mucosal tissues. MAdCAM-1 belongs to a subclass of the immunoglobulin superfamily (IgSF), the members of which are ligands for integrins. Human MAdCAM-1 has a unique dual function compared to other members in the same subclass in that it binds both the integrin alpha4beta7, through its two IgSF domains, and a selectin expressed on leukocytes, via carbohydrate sidechains. The structure determination of the two IgSF domains and comparison to the N-terminal two-domain structures of vascular cell adhesion molecule 1 (VCAM-1) and intercellular adhesion molecules (ICAM-1 and ICAM-2) allow us to assess the molecular basis of the interactions between integrins and their preferred ligands.


    Related Citations: 
    • Traffic Signals for Lymphocyte Recirculation and Le Emigration
      Springer, T.A.
      (1994) Cell 78: 301
    • Human Mucosal Addressin Cell Adhesion Molecule-1(Ma Demonstrates Structural and Functional Similarities Alpha4Beta7-Integrin Binding Domains of Murine Madc But Extreme Divergence of Mucin-Like Sequence
      Shyjan, A.M.,Bertagnolli, M.,Kenney, C.J.,Briskin, M.J.
      (1996) J.Immunol. 156: 2851


    Organizational Affiliation

    Laboratory of Immunobiology Dana-Farber Cancer Institute 44 Binney Street, Boston, MA 02115, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (MUCOSAL ADDRESSIN CELL ADHESION MOLECULE-1)
A
209Homo sapiensMutation(s): 0 
Gene Names: MADCAM1
Find proteins for Q13477 (Homo sapiens)
Go to Gene View: MADCAM1
Go to UniProtKB:  Q13477
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NDG
Query on NDG

Download SDF File 
Download CCD File 
A
2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE
C8 H15 N O6
OVRNDRQMDRJTHS-PVFLNQBWSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.223 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 65.760α = 90.00
b = 101.100β = 90.00
c = 70.040γ = 90.00
Software Package:
Software NamePurpose
CCP4model building
X-PLORrefinement
CCP4phasing
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-08-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance