1PRE | pdb_00001pre

PROAEROLYSIN

• PDB DOI: https://doi.org/10.2210/pdb1PRE/pdb

• Classification: TOXIN (HEMOLYTIC POLYPEPTIDE)
• Organism(s): Aeromonas hydrophila
• Expression System: Aeromonas salmonicida
• Mutation(s): No 


• Deposited: 1995-09-15 Released: 1996-10-14 
• Deposition Author(s): Parker, M.W., Buckley, J.T., Postma, J.P.M., Tucker, A.D., Tsernoglou, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å

Literature

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

• PubMed: 7510043 
• DOI: https://doi.org/10.1038/367292a0
• Primary Citation Related Structures: 
  1PRE


• 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.

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Organizational Affiliation: 
• St Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 103.96 kDa 
• Atom Count: 7,089 
• Modeled Residue Count: 900 
• Deposited Residue Count: 940 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROAEROLYSIN	A, B	470	Aeromonas hydrophila	Mutation(s): 0
UniProt
Find proteins for P09167 (Aeromonas hydrophila) Explore P09167  Go to UniProtKB:  P09167

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104	α = 90
b = 104	β = 90
c = 222	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
PROLSQ	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-10-14 
Deposition Author(s): Parker, M.W., Buckley, J.T., Postma, J.P.M., Tucker, A.D., Tsernoglou, D.

Revision History  

• 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
• Version 1.3: 2024-10-16
  Changes: Data collection, Database references, Structure summary