3SZE

Crystal structure of the passenger domain of the E. coli autotransporter EspP

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.188 

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This is version 1.1 of the entry. See complete history. 

Literature

Crystal Structure of the Passenger Domain of the Escherichia coli Autotransporter EspP.

Khan, S., Mian, H.S., Sandercock, L.E., Chirgadze, N.Y., Pai, E.F.

(2011) J.Mol.Biol. 413: 985-1000

  • DOI: 10.1016/j.jmb.2011.09.028

  • PubMed Abstract: 

    • Autotransporters represent a large superfamily of known and putative virulence factors produced by Gram-negative bacteria. They consist of an N-terminal "passenger domain" responsible for the specific effector functions of the molecule and a C-termin ...

    Autotransporters represent a large superfamily of known and putative virulence factors produced by Gram-negative bacteria. They consist of an N-terminal "passenger domain" responsible for the specific effector functions of the molecule and a C-terminal "β-domain" responsible for translocation of the passenger across the bacterial outer membrane. Here, we present the 2.5-Å crystal structure of the passenger domain of the extracellular serine protease EspP, produced by the pathogen Escherichia coli O157:H7 and a member of the serine protease autotransporters of Enterobacteriaceae (SPATEs). Like the previously structurally characterized SPATE passenger domains, the EspP passenger domain contains an extended right-handed parallel β-helix preceded by an N-terminal globular domain housing the catalytic function of the protease. Of note, however, is the absence of a second globular domain protruding from this β-helix. We describe the structure of the EspP passenger domain in the context of previous results and provide an alternative hypothesis for the function of the β-helix within SPATEs.

    Organizational Affiliation: 

    Campbell Family Cancer Research Institute, Ontario Cancer Institute, University Health Network, Toronto Medical Discovery Tower, Toronto, Ontario, Canada M5G 1L7.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine protease espP
A
968Escherichia coli O157:H7Mutation(s): 1 
Gene Names: espP
EC: 3.4.21.-
Membrane protein
mpstruc		Group: 
TRANSMEMBRANE PROTEINS: BETA-BARREL		Sub Group: 
Outer Membrane Autotransporters		Protein: 
EspP autotransporter, post-cleavage state
Find proteins for Q7BSW5 (Escherichia coli O157:H7)
Go to UniProtKB:  Q7BSW5
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.188 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 88.340α = 90.00
b = 88.340β = 90.00
c = 311.533γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
REFMACrefinement
HKL-2000data scaling
BioCARS-developeddata collection
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-10-12
    Type: Initial release
  • Version 1.1: 2011-11-30
    Type: Database references