Experimental Data Snapshot

  • Resolution: 2.80 Å

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This is version 1.2 of the entry. See complete history


Structure of the Aeromonas toxin proaerolysin in its water-soluble and membrane-channel states.

Parker, M.W.Buckley, J.T.Postma, J.P.Tucker, A.D.Leonard, K.Pattus, F.Tsernoglou, D.

(1994) Nature 367: 292-295

  • DOI: https://doi.org/10.1038/367292a0
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Aerolysin is chiefly responsible for the pathogenicity of Aeromonas hydrophila, a bacterium associated with diarrhoeal diseases and deep wound infections. Like many other microbial toxins, the protein changes in a multistep process from a completely water-soluble form to produce a transmembrane channel that destroys sensitive cells by breaking their permeability barriers. Here we describe the structure of proaerolysin determined by X-ray crystallography at 2.8 A resolution. The protoxin (M(r) 52,000) adopts a novel protein fold. Images of an aerolysin oligomer derived from electron microscopy have assisted in constructing a model of the membrane channel and have led to the proposal of a scheme to account for insertion of the protein into lipid bilayers to form ion channels.

  • Organizational Affiliation

    St Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
470Aeromonas hydrophilaMutation(s): 0 
Find proteins for P09167 (Aeromonas hydrophila)
Explore P09167 
Go to UniProtKB:  P09167
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP09167
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.80 Å
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 104α = 90
b = 104β = 90
c = 222γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-10-14
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance