4OM9

X-Ray Crystal Structure of the passenger domain of Plasmid encoded toxin, an Autrotansporter Enterotoxin from enteroaggregative Escherichia coli (EAEC)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.222 

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This is version 1.2 of the entry. See complete history


Literature

X-ray crystal structure of the passenger domain of plasmid encoded toxin(Pet), an autotransporter enterotoxin from enteroaggregative Escherichia coli (EAEC).

Domingo Meza-Aguilar, J.Fromme, P.Torres-Larios, A.Mendoza-Hernandez, G.Hernandez-Chinas, U.Arreguin-Espinosa de Los Monteros, R.A.Eslava Campos, C.A.Fromme, R.

(2014) Biochem Biophys Res Commun 445: 439-444

  • DOI: 10.1016/j.bbrc.2014.02.016
  • Primary Citation of Related Structures:  
    4OM9

  • PubMed Abstract: 
  • Autotransporters (ATs) represent a superfamily of proteins produced by a variety of pathogenic bacteria, which include the pathogenic groups of Escherichia coli (E. coli) associated with gastrointestinal and urinary tract infections. We present the first X-ray structure of the passenger domain from the Plasmid-encoded toxin (Pet) a 100 kDa protein at 2 ...

    Autotransporters (ATs) represent a superfamily of proteins produced by a variety of pathogenic bacteria, which include the pathogenic groups of Escherichia coli (E. coli) associated with gastrointestinal and urinary tract infections. We present the first X-ray structure of the passenger domain from the Plasmid-encoded toxin (Pet) a 100 kDa protein at 2.3 Å resolution which is a cause of acute diarrhea in both developing and industrialized countries. Pet is a cytoskeleton-altering toxin that induces loss of actin stress fibers. While Pet (pdb code: 4OM9) shows only a sequence identity of 50% compared to the closest related protein sequence, extracellular serine protease plasmid (EspP) the structural features of both proteins are conserved. A closer structural look reveals that Pet contains a β-pleaded sheet at the sequence region of residues 181-190, the corresponding structural domain in EspP consists of a coiled loop. Secondary, the Pet passenger domain features a more pronounced beta sheet between residues 135 and 143 compared to the structure of EspP.


    Related Citations: 
    • Crystal Structure of the Passenger Domain of the Escherichia Coli Autotransporter EspP
      (2011) J Mol Biol 413, No 5: 985
    • Pet Toxin from Enteroaggregative Escherichia Coli Produces Cellular Damage Associated with Fodrin Disruption
      (2000) Infect Immun 68, No 10: 5920
    • Pet, an Autotransporter Enterotoxin from Enteroaggregative Escherichia Coli
      (1998) Infect Immun No.7: 3155
    • Improving the Accuracy of Macromolecular Structure Refinement at 7 Angstrom Resolution
      (2012) Structure 20, no. 6: 957

    Organizational Affiliation

    Department of Chemistry and Biochemistry, Arizona State University, Physical Sciences BLDG D-102, Tempe, AZ 85287, USA. Electronic address: Raimund.Fromme@asu.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serine protease pet A966Escherichia coli 042Mutation(s): 0 
Gene Names: EC042_pAA035pet
EC: 3.4.21
Find proteins for O68900 (Escherichia coli O44:H18 (strain 042 / EAEC))
Explore O68900 
Go to UniProtKB:  O68900
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.222 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.758α = 90
b = 95.926β = 90
c = 164.869γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
PHASERphasing
PHENIXrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-03-12
    Type: Initial release
  • Version 1.1: 2014-03-26
    Changes: Database references, Structure summary
  • Version 1.2: 2014-04-02
    Changes: Database references