5LVY

Structural studies of the Aggregative Adherence Fimbriae of Enteroaggregative Escherichia coli


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 10 
  • Conformers Submitted: 10 
  • Selection Criteria: all calculated structures submitted 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Structural and functional studies of Escherichia coli aggregative adherence fimbriae (AAF/V) reveal a deficiency in extracellular matrix binding.

Jnsson, R.Liu, B.Struve, C.Yang, Y.Jrgensen, R.Xu, Y.Jenssen, H.Krogfelt, K.A.Matthews, S.

(2017) Biochim Biophys Acta 1865: 304-311

  • DOI: 10.1016/j.bbapap.2016.11.017
  • Primary Citation of Related Structures:  
    5LVY

  • PubMed Abstract: 
  • Enteroaggregative Escherichia coli (EAEC) is an emerging cause of acute and persistent diarrhea worldwide. The pathogenesis of different EAEC stains is complicated, however, the early essential step begins with attachment of EAEC to intestinal mucosa via aggregative adherence fimbriae (AAFs) ...

    Enteroaggregative Escherichia coli (EAEC) is an emerging cause of acute and persistent diarrhea worldwide. The pathogenesis of different EAEC stains is complicated, however, the early essential step begins with attachment of EAEC to intestinal mucosa via aggregative adherence fimbriae (AAFs). Currently, five different variants have been identified, which all share a degree of similarity in the gene organization of their operons and sequences. Here, we report the solution structure of Agg5A from the AAF/V variant. While preserving the major structural features shared by all AAF members, only Agg5A possesses an inserted helix at the beginning of the donor strand, which together with altered surface electrostatics, renders the protein unable to interact with fibronectin. Hence, here we characterize the first AAF variant with a binding mode that varies from previously described AAFs.


    Organizational Affiliation

    Centre for Structural Biology, Department of Life Sciences, Imperial College London, South Kensington, London, United Kingdom. Electronic address: s.j.matthews@imperial.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Adhesin proteinA154Escherichia coli O111:H21Mutation(s): 0 
Gene Names: aaf5A
UniProt
Find proteins for C9K5V2 (Escherichia coli O111:H21)
Explore C9K5V2 
Go to UniProtKB:  C9K5V2
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 10 
  • Conformers Submitted: 10 
  • Selection Criteria: all calculated structures submitted 
  • OLDERADO: 5LVY Olderado

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2016-09-14 
  • Released Date: 2017-07-26 
  • Deposition Author(s): Liu, B., Matthews, S.

Revision History  (Full details and data files)

  • Version 1.0: 2017-07-26
    Type: Initial release
  • Version 2.0: 2017-08-02
    Changes: Advisory, Atomic model, Derived calculations, Structure summary