1IAM

STRUCTURE OF THE TWO AMINO-TERMINAL DOMAINS OF HUMAN INTERCELLULAR ADHESION MOLECULE-1, ICAM-1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.303 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The structure of the two amino-terminal domains of human ICAM-1 suggests how it functions as a rhinovirus receptor and as an LFA-1 integrin ligand.

Bella, J.Kolatkar, P.R.Marlor, C.W.Greve, J.M.Rossmann, M.G.

(1998) Proc.Natl.Acad.Sci.USA 95: 4140-4145


  • PubMed Abstract: 
  • The normal function of human intercellular adhesion molecule-1 (ICAM-1) is to provide adhesion between endothelial cells and leukocytes after injury or stress. ICAM-1 binds to leukocyte function-associated antigen (LFA-1) or macrophage-1 antigen (Mac ...

    The normal function of human intercellular adhesion molecule-1 (ICAM-1) is to provide adhesion between endothelial cells and leukocytes after injury or stress. ICAM-1 binds to leukocyte function-associated antigen (LFA-1) or macrophage-1 antigen (Mac-1). However, ICAM-1 is also used as a receptor by the major group of human rhinoviruses and is a catalyst for the subsequent viral uncoating during cell entry. The three-dimensional atomic structure of the two amino-terminal domains (D1 and D2) of ICAM-1 has been determined to 2.2-A resolution and fitted into a cryoelectron microscopy reconstruction of a rhinovirus-ICAM-1 complex. Rhinovirus attachment is confined to the BC, CD, DE, and FG loops of the amino-terminal Ig-like domain (D1) at the end distal to the cellular membrane. The loops are considerably different in structure to those of human ICAM-2 or murine ICAM-1, which do not bind rhinoviruses. There are extensive charge interactions between ICAM-1 and human rhinoviruses, which are mostly conserved in both major and minor receptor groups of rhinoviruses. The interaction of ICAMs with LFA-1 is known to be mediated by a divalent cation bound to the insertion (I)-domain on the alpha chain of LFA-1 and the carboxyl group of a conserved glutamic acid residue on ICAMs. Domain D1 has been docked with the known structure of the I-domain. The resultant model is consistent with mutational data and provides a structural framework for the adhesion between these molecules.


    Related Citations: 
    • The Major Human Rhinovirus Receptor is Icam-1
      Greve, J.M.,Davis, G.,Meyer, A.M.,Forte, C.P.,Yost, S.C.,Marlor, C.W.,Kamarck, M.E.,Mcclelland, A.
      (1989) Cell 56: 839
    • Structure of a Human Rhinovirus Complexed with its Receptor Molecule
      Olson, N.H.,Kolatkar, P.R.,Oliveira, M.A.,Cheng, R.H.,Greve, J.M.,Mcclelland, A.,Baker, T.S.,Rossmann, M.G.
      (1993) Proc.Natl.Acad.Sci.USA 90: 507


    Organizational Affiliation

    Department of Biological Sciences, Purdue University, West Lafayette, IN 47907-1392, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INTERCELLULAR ADHESION MOLECULE-1
A
185Homo sapiensMutation(s): 3 
Gene Names: ICAM1
Find proteins for P05362 (Homo sapiens)
Go to Gene View: ICAM1
Go to UniProtKB:  P05362
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.303 
  • R-Value Work: 0.214 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 41.857α = 90.00
b = 124.736β = 90.00
c = 83.186γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
X-PLORrefinement
DENZOdata reduction
X-PLORmodel building
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-04-29
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance
  • Version 1.3: 2011-11-16
    Type: Atomic model