1E5U

NMR Representative Structure of Intimin-190 (Int190) from Enteropathogenic E. coli


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 15 
  • Conformers Submitted: 
  • Selection Criteria: LEAST ENERGY 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Basis for Recognition of the Translocated Intimin Receptor (Tir) by Intimin from Enteropathogenic E. Coli

Batchelor, M.Prasannan, S.Daniell, S.Reece, S.Connerton, I.Bloomberg, G.Dougan, G.Frankel, G.Matthews, S.J.

(2000) Embo J. 19: 2452

  • DOI: 10.1093/emboj/19.11.2452

  • PubMed Abstract: 
  • Intimin is a bacterial adhesion molecule involved in intimate attachment of enteropathogenic and enterohaemorrhagic Escherichia coli to mammalian host cells. Intimin targets the translocated intimin receptor (Tir), which is exported by the bacteria a ...

    Intimin is a bacterial adhesion molecule involved in intimate attachment of enteropathogenic and enterohaemorrhagic Escherichia coli to mammalian host cells. Intimin targets the translocated intimin receptor (Tir), which is exported by the bacteria and integrated into the host cell plasma membrane. In this study we localized the Tir-binding region of intimin to the C-terminal 190 amino acids (Int190). We have also determined the region's high-resolution solution structure, which comprises an immunoglobulin domain that is intimately coupled to a novel C-type lectin domain. This fragment, which is necessary and sufficient for Tir interaction, defines a new super domain in intimin that exhibits striking structural similarity to the integrin-binding domain of the Yersinia invasin and C-type lectin families. The extracellular portion of intimin comprises an articulated rod of immunoglobulin domains extending from the bacterium surface, conveying a highly accessible 'adhesive tip' to the target cell. The interpretation of NMR-titration and mutagenesis data has enabled us to identify, for the first time, the binding site for Tir, which is located at the extremity of the Int190 moiety.


    Organizational Affiliation

    Department of Biochemistry and Centre for Structural Biology, Imperial College of Science, Technology and Medicine, London SW7 2AZ, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INTIMIN
I
187Escherichia 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: SOLUTION NMR
  • Conformers Calculated: 15 
  • Conformers Submitted: 
  • Selection Criteria: LEAST ENERGY 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-08-16
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance