3Q1C

Structure of EspG Protein

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.162 

wwPDB Validation   3D Report Full Report


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


Literature

Structural and Functional Studies Indicate That the EPEC Effector, EspG, Directly Binds p21-Activated Kinase.

Germane, K.L., Spiller, B.W.

(2011) Biochemistry 50: 917-919

  • DOI: 10.1021/bi1020138
  • Primary Citation of Related Structures:  
    3Q1C

  • PubMed Abstract: 

    • Bacterial pathogens secrete effectors into their hosts that subvert host defenses and redirect host processes. EspG is a type three secretion effector with a disputed function that is found in enteropathogenic Escherichia coli. Here we show that EspG is structurally similar to VirA, a Shigella virulence factor; EspG has a large, conserved pocket on its surface; EspG binds directly to the amino-terminal inhibitory domain of human p21-activated kinase (PAK); and mutations to conserved residues in the surface pocket disrupt the interaction with PAK ...

    Bacterial pathogens secrete effectors into their hosts that subvert host defenses and redirect host processes. EspG is a type three secretion effector with a disputed function that is found in enteropathogenic Escherichia coli. Here we show that EspG is structurally similar to VirA, a Shigella virulence factor; EspG has a large, conserved pocket on its surface; EspG binds directly to the amino-terminal inhibitory domain of human p21-activated kinase (PAK); and mutations to conserved residues in the surface pocket disrupt the interaction with PAK.

    Organizational Affiliation: 

    Department of Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
LEE-encoded effector EspGA360Escherichia coli O127:H6 str. E2348/69Mutation(s): 0 
Gene Names: E2348C_3970, E2348_C_3970, espG
UniProt
Find proteins for B7UMC8 (Escherichia coli O127:H6 (strain E2348/69 / EPEC))
Explore B7UMC8 
Go to UniProtKB:  B7UMC8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB7UMC8
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.162 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.15α = 90
b = 74.378β = 90
c = 93.921γ = 90
Software Package:
Software NamePurpose
PHENIXmodel building
PHENIXrefinement
ADSCdata collection
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

View Full Validation Report



View more in-depth experimental data
Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-02-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance