2GWM

Crystal structure of the Salmonella SpvB ATR Domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.156 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

A steric antagonism of actin polymerization by a salmonella virulence protein.

Margarit, S.M.Davidson, W.Frego, L.Stebbins, C.E.

(2006) Structure 14: 1219-1229

  • DOI: 10.1016/j.str.2006.05.022
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Salmonella spp. require the ADP-ribosyltransferase activity of the SpvB protein for intracellular growth and systemic virulence. SpvB covalently modifies actin, causing cytoskeletal disruption and apoptosis. We report here the crystal structure of th ...

    Salmonella spp. require the ADP-ribosyltransferase activity of the SpvB protein for intracellular growth and systemic virulence. SpvB covalently modifies actin, causing cytoskeletal disruption and apoptosis. We report here the crystal structure of the catalytic domain of SpvB, and we show by mass spectrometric analysis that SpvB modifies actin at Arg177, inhibiting its ATPase activity. We also describe two crystal structures of SpvB-modified, polymerization-deficient actin. These structures reveal that ADP-ribosylation does not lead to dramatic conformational changes in actin, suggesting a model in which this large family of toxins inhibits actin polymerization primarily through steric disruption of intrafilament contacts.


    Organizational Affiliation

    Laboratory of Structural Microbiology, Rockefeller University, New York, New York 10021, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
65 kDa virulence protein
A
200Salmonella typhimuriumMutation(s): 0 
Gene Names: spvB (mkaA)
EC: 2.4.2.31
Find proteins for P21454 (Salmonella typhimurium)
Go to UniProtKB:  P21454
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.156 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 55.585α = 90.00
b = 55.585β = 90.00
c = 143.577γ = 120.00
Software Package:
Software NamePurpose
DENZOdata reduction
PDB_EXTRACTdata extraction
SCALEPACKdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-08-29
    Type: Initial release
  • Version 1.1: 2008-04-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-18
    Type: Refinement description