5A3A

Crystal structure of the ADP-ribosylating sirtuin (SirTM) from Streptococcus pyogenes (Apo form)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.54 Å
  • R-Value Free: 0.200 
  • R-Value Work: 0.150 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Identification of a Class of Protein Adp-Ribosylating Sirtuins in Microbial Pathogens.

Rack, J.G.Morra, R.Barkauskaite, E.Kraehenbuehl, R.Ariza, A.Qu, Y.Ortmayer, M.Leidecker, O.Cameron, D.R.Matic, I.Peleg, A.Y.Leys, D.Traven, A.Ahel, I.

(2015) Mol.Cell 59: 309

  • DOI: 10.1016/j.molcel.2015.06.013
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Sirtuins are an ancient family of NAD(+)-dependent deacylases connected with the regulation of fundamental cellular processes including metabolic homeostasis and genome integrity. We show the existence of a hitherto unrecognized class of sirtuins, fo ...

    Sirtuins are an ancient family of NAD(+)-dependent deacylases connected with the regulation of fundamental cellular processes including metabolic homeostasis and genome integrity. We show the existence of a hitherto unrecognized class of sirtuins, found predominantly in microbial pathogens. In contrast to earlier described classes, these sirtuins exhibit robust protein ADP-ribosylation activity. In our model organisms, Staphylococcus aureus and Streptococcus pyogenes, the activity is dependent on prior lipoylation of the target protein and can be reversed by a sirtuin-associated macrodomain protein. Together, our data describe a sirtuin-dependent reversible protein ADP-ribosylation system and establish a crosstalk between lipoylation and mono-ADP-ribosylation. We propose that these posttranslational modifications modulate microbial virulence by regulating the response to host-derived reactive oxygen species.


    Organizational Affiliation

    Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SIR2 FAMILY PROTEIN
A
303Streptococcus pyogenes serotype M2 (strain MGAS10270)Mutation(s): 0 
Find proteins for Q1JGN6 (Streptococcus pyogenes serotype M2 (strain MGAS10270))
Go to UniProtKB:  Q1JGN6
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
GLY
Query on GLY

Download SDF File 
Download CCD File 
A
GLYCINE
C2 H5 N O2
DHMQDGOQFOQNFH-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.54 Å
  • R-Value Free: 0.200 
  • R-Value Work: 0.150 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 34.160α = 99.87
b = 41.510β = 94.63
c = 51.230γ = 90.77
Software Package:
Software NamePurpose
REFMACrefinement
Aimlessdata scaling
autoSHARPphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-07-29
    Type: Initial release