1GSM

A reassessment of the MAdCAM-1 structure and its role in integrin recognition.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A Reassessment of the Madcam-1 Structure and its Role in Integrin Recognition

Dando, J.Wilkinson, K.W.Ortlepp, S.King, D.J.Brady, R.L.

(2002) Acta Crystallogr.,Sect.D 58: 233


  • PubMed Abstract: 
  • Mucosal addressin cell-adhesion molecule (MAdCAM-1) is a membrane-bound leukocyte receptor regulating both the passage and retention of leukocytes in mucosal tissues. A crystal structure for the two extracellular amino-terminal domains of human MAdCA ...

    Mucosal addressin cell-adhesion molecule (MAdCAM-1) is a membrane-bound leukocyte receptor regulating both the passage and retention of leukocytes in mucosal tissues. A crystal structure for the two extracellular amino-terminal domains of human MAdCAM-1 has previously been reported, confirming their expected immunoglobulin superfamily topology. In this study, a second crystal structure of this fragment is described. Although the overall structure is similar to that previously reported, one edge strand in the amino-terminal domain is instead located on the opposite sheet. This alters the arrangement and conformation of amino acids in this region that have previously been shown to be crucial for ligand binding. MAdCAM-1 is also seen to form dimers within the crystal lattice, raising the possibility that oligomerization may influence the biological role of this adhesion molecule.


    Organizational Affiliation

    Department of Biochemistry, University of Bristol, Bristol BS8 1TD, England.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MUCOSAL ADDRESSIN CELL ADHESION MOLECULE-1
A
210Homo sapiensGene Names: MADCAM1
Find proteins for Q13477 (Homo sapiens)
Go to Gene View: MADCAM1
Go to UniProtKB:  Q13477
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.217 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 64.000α = 90.00
b = 99.200β = 90.00
c = 70.500γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
DENZOdata reduction
CCP4phasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-01-29
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance