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 

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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
  • Primary Citation of Related Structures:  
    1E5U

  • 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 and integrated into the host cell plasma membrane ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
INTIMINA [auth I]187Escherichia coliMutation(s): 0 
Gene Names: eae
Find proteins for P19809 (Escherichia coli O127:H6 (strain E2348/69 / EPEC))
Explore P19809 
Go to UniProtKB:  P19809
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 15 
  • Conformers Submitted: 
  • Selection Criteria: LEAST ENERGY 
  • OLDERADO: 1E5U Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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