4MEE

Crystal structure of the transport unit of the autotransporter AIDA-I from Escherichia coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.251 

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This is version 1.1 of the entry. See complete history


Literature

Crystal structure of the transport unit of the autotransporter adhesin involved in diffuse adherence from Escherichia coli.

Gawarzewski, I.DiMaio, F.Winterer, E.Tschapek, B.Smits, S.H.Jose, J.Schmitt, L.

(2014) J Struct Biol 187: 20-29

  • DOI: 10.1016/j.jsb.2014.05.003
  • Primary Citation of Related Structures:  
    4MEE

  • PubMed Abstract: 
  • Several serious gastrointestinal diseases, which are widespread all over the world, are caused by enteropathogenic Escherichia coli. The monomeric autotransporter AIDA-I (adhesin involved in diffuse adherence) represents an important virulence factor of these strains and is involved in adhesion, biofilm formation, aggregation and invasion into host cells ...

    Several serious gastrointestinal diseases, which are widespread all over the world, are caused by enteropathogenic Escherichia coli. The monomeric autotransporter AIDA-I (adhesin involved in diffuse adherence) represents an important virulence factor of these strains and is involved in adhesion, biofilm formation, aggregation and invasion into host cells. Here, we present the crystal structure of the transport unit of AIDA-I at 3.0Å resolution, which forms a 12-stranded β-barrel harboring the linker domain in its pore. Mutagenesis studies of the C-terminal amino acid demonstrated the great impact of this terminal residue on membrane integration of AIDA-I and passenger translocation.


    Organizational Affiliation

    Institute of Biochemistry, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany. Electronic address: lutz.schmitt@hhu.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Diffuse adherence adhesinA469Escherichia coliMutation(s): 0 
Gene Names: aidAaidA-I
Membrane Entity: Yes 
UniProt
Find proteins for Q03155 (Escherichia coli)
Explore Q03155 
Go to UniProtKB:  Q03155
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.251 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.33α = 90
b = 85.85β = 90
c = 134.05γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
Rosettamodel building
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
Rosettaphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-06-04
    Type: Initial release
  • Version 1.1: 2014-07-23
    Changes: Database references