1BQS

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.223 

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Ligand Structure Quality Assessment 


This is version 2.0 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

  • DOI: 10.1016/s0969-2126(98)00080-x
  • Primary Citation of Related Structures:  
    1BQS

  • 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 superfamily (IgSF), the members of which are ligands for integrins ...

    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: 
    • 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
    • Traffic Signals for Lymphocyte Recirculation and Le Emigration
      Springer, T.A.
      (1994) Cell 78: 301

    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (MUCOSAL ADDRESSIN CELL ADHESION MOLECULE-1)A209Homo sapiensMutation(s): 0 
Gene Names: MADCAM1
UniProt & NIH Common Fund Data Resources
Find proteins for Q13477 (Homo sapiens)
Explore Q13477 
Go to UniProtKB:  Q13477
PHAROS:  Q13477
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ13477
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download Ideal Coordinates CCD File 
B [auth A]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.223 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.76α = 90
b = 101.1β = 90
c = 70.04γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CCP4model building
X-PLORrefinement
CCP4phasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-08-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary