5A35

Crystal structure of Glycine Cleavage Protein H-Like (GcvH-L) from Streptococcus pyogenes

• PDB DOI: https://doi.org/10.2210/pdb5A35/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Streptococcus pyogenes str. Manfredo
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-05-27 Released: 2015-07-29 
• Deposition Author(s): Rack, J.G.M., 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.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.173 
• R-Value Work: 0.153 
• R-Value Observed: 0.154 

Starting Model: experimental

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

• PubMed: 26166706 
• DOI: https://doi.org/10.1016/j.molcel.2015.06.013
• Primary Citation of Related Structures:  
  5A35, 5A3A, 5A3B, 5A3C


• 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, 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.

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Organizational Affiliation: 

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

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 13.5 kDa 
• Atom Count: 1,201 
• Modelled Residue Count: 112 
• Deposited Residue Count: 120 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GLYCINE CLEAVAGE SYSTEM H PROTEIN	A	120	Streptococcus pyogenes str. Manfredo	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
1PE	B [auth A]	PENTAETHYLENE GLYCOL C10 H22 O6 JLFNLZLINWHATN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.173 
• R-Value Work: 0.153 
• R-Value Observed: 0.154 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.123	α = 90
b = 64.123	β = 90
c = 73.042	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-07-29 
Deposition Author(s): Rack, J.G.M., 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.

Revision History  

• Version 1.0: 2015-07-29
  Type: Initial release
  
• Version 1.1: 2024-01-10
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description