4JCT

ClpP2 from Listeria monocytogenes


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural and functional insights into caseinolytic proteases reveal an unprecedented regulation principle of their catalytic triad.

Zeiler, E.List, A.Alte, F.Gersch, M.Wachtel, R.Poreba, M.Drag, M.Groll, M.Sieber, S.A.

(2013) Proc.Natl.Acad.Sci.USA 110: 11302-11307

  • DOI: 10.1073/pnas.1219125110
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Caseinolytic proteases (ClpPs) are large oligomeric protein complexes that contribute to cell homeostasis as well as virulence regulation in bacteria. Although most organisms possess a single ClpP protein, some organisms encode two or more ClpP isofo ...

    Caseinolytic proteases (ClpPs) are large oligomeric protein complexes that contribute to cell homeostasis as well as virulence regulation in bacteria. Although most organisms possess a single ClpP protein, some organisms encode two or more ClpP isoforms. Here, we elucidated the crystal structures of ClpP1 and ClpP2 from pathogenic Listeria monocytogenes and observe an unprecedented regulation principle by the catalytic triad. Whereas L. monocytogenes (Lm)ClpP2 is both structurally and functionally similar to previously studied tetradecameric ClpP proteins from Escherichia coli and Staphylococcus aureus, heptameric LmClpP1 features an asparagine in its catalytic triad. Mutation of this asparagine to aspartate increased the reactivity of the active site and led to the assembly of a tetradecameric complex. We analyzed the heterooligomeric complex of LmClpP1 and LmClpP2 via coexpression and subsequent labeling studies with natural product-derived probes. Notably, the LmClpP1 peptidase activity is stimulated 75-fold in the complex providing insights into heterooligomerization as a regulatory mechanism. Collectively, our data point toward different preferences for substrates and inhibitors of the two ClpP enzymes and highlight their structural and functional characteristics.


    Organizational Affiliation

    Center for Integrated Protein Science Munich (CIPSM), Institute of Advanced Studies, Department Chemie, Lehrstuhl für Organische Chemie II, Technische Universität München, 85747 Garching, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ATP-dependent Clp protease proteolytic subunit
A, B, C, D, E, F, G
209Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e)Mutation(s): 0 
Gene Names: clpP
EC: 3.4.21.92
Find proteins for Q9RQI6 (Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e))
Go to UniProtKB:  Q9RQI6
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.211 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 120.110α = 90.00
b = 148.460β = 119.31
c = 103.470γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
PHASERphasing
XSCALEdata scaling
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-06-12
    Type: Initial release
  • Version 1.1: 2013-07-17
    Type: Database references
  • Version 1.2: 2013-07-24
    Type: Database references