Biological Assembly 1  

 3D View: Structure

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

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

Macromolecule Content

• Total Structure Weight: 23.67 kDa 
• Atom Count: 1949 
• Modelled Residue Count: 212 
• Deposited Residue Count: 212 
• Unique protein chains: 1

1OJQ

The crystal structure of C3stau2 from S. aureus

• DOI: 10.2210/pdb1OJQ/pdb

• Classification: TRANSFERASE
• Organism(s): Staphylococcus aureus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2003-07-15 Released: 2003-08-28 
• Deposition Author(s): Evans, H.R., Sutton, J.M., Holloway, D.E., Ayriss, J., Shone, C.C., Acharya, K.R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.68 Å
• R-Value Free: 0.237 
• R-Value Observed: 0.170 

Literature

The Crystal Structure of C3Stau2 from Staphylococcus Aureus and its Complex with Nad

Evans, H.R., Sutton, J.M., Holloway, D.E., Ayriss, J., Shone, C.C., Acharya, K.R.

(2003) J Biol Chem 278: 45924

• PubMed: 12933793 
• DOI: 10.1074/jbc.M307719200
• Primary Citation of Related Structures:  
  1OJQ, 1OJZ


• PubMed Abstract: 
  

The C3stau2 exoenzyme from Staphylococcus aureus is a C3-like ADP-ribosyltransferase that ADP-ribosylates not only RhoA-C but also RhoE/Rnd3. In this study we have crystallized and determined the structure of C3stau2 in both its native form and in complex with NAD at 1.68- and 2.02-A resolutions, respectively. The topology of C3stau2 is similar to that of C3bot1 from Clostridium botulinum (with which it shares 35% amino acid sequence identity) with the addition of two extra helices after strand beta1. The native structure also features a novel orientation of the catalytic ARTT loop, which approximates the conformation seen for the "NAD bound" form of C3bot1. C3stau2 orients NAD similarly to C3bot1, and on binding NAD, C3stau2 undergoes a clasping motion and a rearrangement of the phosphate-nicotinamide binding loop, enclosing the NAD in the binding site. Comparison of these structures with those of C3bot1 and related toxins reveals a degree of divergence in the interactions with the adenine moiety among the ADP-ribosylating toxins that contrasts with the more conserved interactions with the nicotinamide. Comparison with C3bot1 gives some insight into the different protein substrate specificities of these enzymes.

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Organizational Affiliation: 

Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ADP-RIBOSYLTRANSFERASE	A	212	Staphylococcus aureus	Mutation(s): 0
UniProt
Find proteins for Q9ADS9 (Staphylococcus aureus) Explore Q9ADS9  Go to UniProtKB:  Q9ADS9

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.68 Å
• R-Value Free: 0.237 
• R-Value Observed: 0.170 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 39.616	α = 90
b = 64.525	β = 90
c = 74.984	γ = 90

Software Package:

Software Name	Purpose
SHELXL-97	refinement
HKL-2000	data reduction
HKL-2000	data scaling
SHELX	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-07-15 
• Released Date: 2003-08-28 
Deposition Author(s): Evans, H.R., Sutton, J.M., Holloway, D.E., Ayriss, J., Shone, C.C., Acharya, K.R.

Revision History  

• Version 1.0: 2003-08-28
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-05-22
  Changes: Data collection, Other, Refinement description