2C8B

Structure of the ARTT motif Q212A mutant C3bot1 Exoenzyme (Free state, crystal form II)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Basis for the Nad-Hydrolysis Mechanism and the Artt-Loop Plasticity of C3 Exoenzymes.

Menetrey, J.Flatau, G.Boquet, P.Menez, A.Stura, E.A.

(2008) Protein Sci. 17: 878

  • DOI: 10.1110/ps.073398508
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • C3-like exoenzymes are ADP-ribosyltransferases that specifically modify some Rho GTPase proteins, leading to their sequestration in the cytoplasm, and thus inhibiting their regulatory activity on the actin cytoskeleton. This modification process goes ...

    C3-like exoenzymes are ADP-ribosyltransferases that specifically modify some Rho GTPase proteins, leading to their sequestration in the cytoplasm, and thus inhibiting their regulatory activity on the actin cytoskeleton. This modification process goes through three sequential steps involving NAD-hydrolysis, Rho recognition, and binding, leading to Rho ADP-ribosylation. Independently, three distinct residues within the ARTT loop of the C3 exoenzymes are critical for each of these steps. Supporting the critical role of the ARTT loop, we have shown previously that it adopts a distinct conformation upon NAD binding. Here, we present seven wild-type and ARTT loop-mutant structures of C3 exoenzyme of Clostridium botulinum free and bound to its true substrate, NAD, and to its NAD-hydrolysis product, nicotinamide. Altogether, these structures expand our understanding of the conformational diversity of the C3 exoenzyme, mainly within the ARTT loop.


    Related Citations: 
    • Nad Binding Induces Conformational Changes in Rho Adp-Ribosylating Clostridium Botulinum C3 Exoenzyme.
      Menetrey, J.,Flatau, G.,Stura, E.A.,Charbonnier, J.B.,Gas, F.,Teulon, J.M.,Ledu, M.H.,Boquet, P.,Menez, A.
      (2002) J.Biol.Chem. 277: 30950


    Organizational Affiliation

    Institut Curie, Centre de Recherche, Paris F-75248, France. julie.Menetrey@curie.fr




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MONO-ADP-RIBOSYLTRANSFERASE C3
X
211Clostridium botulinum D phageMutation(s): 1 
Gene Names: C3
EC: 2.4.2.-
Find proteins for P15879 (Clostridium botulinum D phage)
Go to Gene View: C3
Go to UniProtKB:  P15879
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.191 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 62.941α = 90.00
b = 86.884β = 117.31
c = 42.896γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
AMoREphasing
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-02-27
    Type: Initial release
  • Version 1.1: 2011-06-02
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance