1F00

CRYSTAL STRUCTURE OF C-TERMINAL 282-RESIDUE FRAGMENT OF ENTEROPATHOGENIC E. COLI INTIMIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of enteropathogenic Escherichia coli intimin-receptor complex.

Luo, Y.Frey, E.A.Pfuetzner, R.A.Creagh, A.L.Knoechel, D.G.Haynes, C.A.Finlay, B.B.Strynadka, N.C.

(2000) Nature 405: 1073-1077

  • DOI: 10.1038/35016618
  • Primary Citation of Related Structures:  1F02

  • PubMed Abstract: 
  • Intimin and its translocated intimin receptor (Tir) are bacterial proteins that mediate adhesion between mammalian cells and attaching and effacing (A/E) pathogens. Enteropathogenic Escherichia coli (EPEC) causes significant paediatric morbidity and ...

    Intimin and its translocated intimin receptor (Tir) are bacterial proteins that mediate adhesion between mammalian cells and attaching and effacing (A/E) pathogens. Enteropathogenic Escherichia coli (EPEC) causes significant paediatric morbidity and mortality world-wide. A related A/E pathogen, enterohaemorrhagic E. coli (EHEC; O157:H7) is one of the most important food-borne pathogens in North America, Europe and Japan. A unique and essential feature of A/E bacterial pathogens is the formation of actin-rich pedestals beneath the intimately adherent bacteria and localized destruction of the intestinal brush border. The bacterial outer membrane adhesin, intimin, is necessary for the production of the A/E lesion and diarrhoea. The A/E bacteria translocate their own receptor for intimin, Tir, into the membrane of mammalian cells using the type III secretion system. The translocated Tir triggers additional host signalling events and actin nucleation, which are essential for lesion formation. Here we describe the the crystal structures of an EPEC intimin carboxy-terminal fragment alone and in complex with the EPEC Tir intimin-binding domain, giving insight into the molecular mechanisms of adhesion of A/E pathogens.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INTIMIN
I
282Escherichia coli O127:H6 (strain E2348/69 / EPEC)Gene Names: eae (eaeA)
Find proteins for P19809 (Escherichia coli O127:H6 (strain E2348/69 / EPEC))
Go to UniProtKB:  P19809
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.215 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 52.160α = 90.00
b = 47.100β = 94.20
c = 71.660γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
SHARPphasing
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-07-12
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance