Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Dihedral - D7  (3D View)
Global Stoichiometry: Homo 14-mer - A14 

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

Macromolecule Content

• Total Structure Weight: 160.80 kDa 
• Atom Count: 10130 
• Residue Count: 1288 
• Unique protein chains: 1

4JCT

ClpP2 from Listeria monocytogenes

• DOI: 10.2210/pdb4JCT/pdb

• Classification: HYDROLASE
• Organism(s): Listeria monocytogenes EGD-e
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2013-02-22 Released: 2013-06-12 
• Deposition Author(s): Zeiler, E., List, A., Alte, F., Gersch, M., Wachtel, R., Groll, M., Sieber, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.248 
• R-Value Work: 0.211 
• R-Value Observed: 0.213 

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 U S A 110: 11302-11307

• PubMed: 23798410 
• DOI: 10.1073/pnas.1219125110
• Primary Citation of Related Structures:  
  4JCQ, 4JCR, 4JCT


• 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 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.

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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

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP-dependent Clp protease proteolytic subunit	A, B, C, D, E, F, G	209	Listeria monocytogenes EGD-e	Mutation(s): 0  Gene Names: clpP, lmo2468 EC: 3.4.21.92
Find proteins for Q9RQI6 (Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e)) Explore Q9RQI6  Go to UniProtKB:  Q9RQI6

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.248 
• R-Value Work: 0.211 
• R-Value Observed: 0.213 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 120.11	α = 90
b = 148.46	β = 119.31
c = 103.47	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-02-22 
• Released Date: 2013-06-12 
Deposition Author(s): Zeiler, E., List, A., Alte, F., Gersch, M., Wachtel, R., Groll, M., Sieber, S.

Revision History 

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