1NBQ

Crystal Structure of Human Junctional Adhesion Molecule Type 1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.305 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of human junctional adhesion molecule 1: Implications for reovirus binding

Prota, A.E.Campbell, J.A.Schelling, P.Forrest, J.C.Watson, M.J.Peters, T.R.Aurrand-Lions, M.Imhof, B.A.Dermody, T.S.Stehle, T.

(2003) Proc.Natl.Acad.Sci.USA 100: 5366-5371

  • DOI: 10.1073/pnas.0937718100

  • PubMed Abstract: 
  • Reovirus attachment to cells is mediated by the binding of viral attachment protein sigma 1 to junctional adhesion molecule 1 (JAM1). The crystal structure of the extracellular region of human JAM1 (hJAM1) reveals two concatenated Ig-type domains wit ...

    Reovirus attachment to cells is mediated by the binding of viral attachment protein sigma 1 to junctional adhesion molecule 1 (JAM1). The crystal structure of the extracellular region of human JAM1 (hJAM1) reveals two concatenated Ig-type domains with a pronounced bend at the domain interface. Two hJAM1 molecules form a dimer that is stabilized by extensive ionic and hydrophobic contacts between the N-terminal domains. This dimeric arrangement is similar to that observed previously in the murine homolog of JAM1, indicating physiologic relevance. However, differences in the dimeric structures of hJAM1 and murine JAM1 suggest that the interface is dynamic, perhaps as a result of its ionic nature. We demonstrate that hJAM1, but not the related proteins hJAM2 and hJAM3, serves as a reovirus receptor, which provides insight into sites in hJAM1 that likely interact with sigma 1. In addition, we present evidence that the previously reported structural homology between sigma 1 and the adenovirus attachment protein, fiber, also extends to their respective receptors, which form similar dimeric structures. Because both receptors are located at regions of cell-cell contact, this similarity suggests that reovirus and adenovirus use conserved mechanisms of entry and pathways of infection.


    Organizational Affiliation

    Laboratory of Developmental Immunology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Junctional adhesion molecule 1
A, B
209Homo sapiensGene Names: F11R (JAM1, JCAM)
Find proteins for Q9Y624 (Homo sapiens)
Go to Gene View: F11R
Go to UniProtKB:  Q9Y624
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.305 
  • R-Value Work: 0.220 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 116.800α = 90.00
b = 61.800β = 120.01
c = 82.900γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
DENZOdata reduction
X-PLORrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-04-01
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance