5HBN

ClpC N-terminal domain with bound phospho-arginine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.166 
  • R-Value Work: 0.145 
  • R-Value Observed: 0.147 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Arginine phosphorylation marks proteins for degradation by a Clp protease.

Trentini, D.B.Suskiewicz, M.J.Heuck, A.Kurzbauer, R.Deszcz, L.Mechtler, K.Clausen, T.

(2016) Nature 539: 48-53

  • DOI: 10.1038/nature20122
  • Primary Citation of Related Structures:  
    5HBN

  • PubMed Abstract: 
  • Protein turnover is a tightly controlled process that is crucial for the removal of aberrant polypeptides and for cellular signalling. Whereas ubiquitin marks eukaryotic proteins for proteasomal degradation, a general tagging system for the equivalent bacterial Clp proteases is not known ...

    Protein turnover is a tightly controlled process that is crucial for the removal of aberrant polypeptides and for cellular signalling. Whereas ubiquitin marks eukaryotic proteins for proteasomal degradation, a general tagging system for the equivalent bacterial Clp proteases is not known. Here we describe the targeting mechanism of the ClpC-ClpP proteolytic complex from Bacillus subtilis. Quantitative affinity proteomics using a ClpP-trapping mutant show that proteins phosphorylated on arginine residues are selectively targeted to ClpC-ClpP. In vitro reconstitution experiments demonstrate that arginine phosphorylation by the McsB kinase is required and sufficient for the degradation of substrate proteins. The docking site for phosphoarginine is located in the amino-terminal domain of the ClpC ATPase, as resolved at high resolution in a co-crystal structure. Together, our data demonstrate that phosphoarginine functions as a bona fide degradation tag for the ClpC-ClpP protease. This system, which is widely distributed across Gram-positive bacteria, is functionally analogous to the eukaryotic ubiquitin-proteasome system.


    Organizational Affiliation

    Research Institute of Molecular Pathology (IMP), Dr-Bohr-Gasse 7, 1030 Vienna, Austria.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Negative regulator of genetic competence ClpC/MecB A156Bacillus subtilis subsp. subtilis str. 168Mutation(s): 0 
Gene Names: clpCmecBBSU00860
Find proteins for P37571 (Bacillus subtilis (strain 168))
Explore P37571 
Go to UniProtKB:  P37571
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.166 
  • R-Value Work: 0.145 
  • R-Value Observed: 0.147 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 84.6α = 90
b = 84.6β = 90
c = 29.85γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-10-12
    Type: Initial release
  • Version 1.1: 2016-10-26
    Changes: Database references
  • Version 1.2: 2016-11-09
    Changes: Database references
  • Version 1.3: 2019-07-17
    Changes: Data collection
  • Version 1.4: 2019-10-16
    Changes: Data collection