Macromolecule Content

• Total Structure Weight: 20.07 kDa 
• Atom Count: 1412 
• Residue Count: 187 
• Unique protein chains: 1

1E5U

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

• DOI: 10.2210/pdb1E5U/pdb
• Entry: 1E5U supersedes: 1E1B

• Classification: INTIMIN
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2000-08-02 Released: 2000-08-16 
• Deposition Author(s): Prasannan, S., Matthews, S.J., Batchelor, M., Daniell, S., Reece, S., Frankel, G., Dougan, G., Connerton, I., Bloomberg, G.

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Experimental Data Snapshot

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

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

• PubMed: 10835344 
• DOI: 10.1093/emboj/19.11.2452
• Structures With Same Primary Citation


• 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. 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
INTIMIN	I	187	Escherichia coli	Mutation(s): 0  Gene Names: eae
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: 1 
• Selection Criteria: LEAST ENERGY 
• OLDERADO: 1E5U Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-08-02 
• Released Date: 2000-08-16 
Deposition Author(s): Prasannan, S., Matthews, S.J., Batchelor, M., Daniell, S., Reece, S., Frankel, G., Dougan, G., Connerton, I., Bloomberg, G.
• This entry supersedes: 1E1B

Revision History 

• 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