6RB9

The pore structure of Clostridium perfringens epsilon toxin


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

The pore structure of Clostridium perfringens epsilon toxin.

Savva, C.G.Clark, A.R.Naylor, C.E.Popoff, M.R.Moss, D.S.Basak, A.K.Titball, R.W.Bokori-Brown, M.

(2019) Nat Commun 10: 2641-2641

  • DOI: https://doi.org/10.1038/s41467-019-10645-8
  • Primary Citation of Related Structures:  
    6RB9

  • PubMed Abstract: 

    Epsilon toxin (Etx), a potent pore forming toxin (PFT) produced by Clostridium perfringens, is responsible for the pathogenesis of enterotoxaemia of ruminants and has been suggested to play a role in multiple sclerosis in humans. Etx is a member of the aerolysin family of β-PFTs (aβ-PFTs). While the Etx soluble monomer structure was solved in 2004, Etx pore structure has remained elusive due to the difficulty of isolating the pore complex. Here we show the cryo-electron microscopy structure of Etx pore assembled on the membrane of susceptible cells. The pore structure explains important mutant phenotypes and suggests that the double β-barrel, a common feature of the aβ-PFTs, may be an important structural element in driving efficient pore formation. These insights provide the framework for the development of novel therapeutics to prevent human and animal infections, and are relevant for nano-biotechnology applications.


  • Organizational Affiliation

    Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Lancaster Road, Leicester, LE1 7HB, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Epsilon-toxin type B
A, B, C, D, E
A, B, C, D, E, F, G
286Clostridium perfringens BMutation(s): 0 
Gene Names: etxB
Membrane Entity: Yes 
UniProt
Find proteins for Q02307 (Clostridium perfringens)
Explore Q02307 
Go to UniProtKB:  Q02307
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ02307
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX
RECONSTRUCTIONRELION

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited KingdomWT089618MA
Medical Research Council (United Kingdom)United KingdomMC-A021-53019

Revision History  (Full details and data files)

  • Version 1.0: 2019-06-19
    Type: Initial release
  • Version 1.1: 2019-06-26
    Changes: Data collection, Database references
  • Version 1.2: 2019-12-18
    Changes: Other
  • Version 1.3: 2020-07-29
    Changes: Data collection
  • Version 1.4: 2024-05-22
    Changes: Data collection, Database references