5C90

Staphylococcus aureus ClpP mutant - Y63A

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Characterization of Gain-of-Function Mutant Provides New Insights into ClpP Structure

Ni, T., Ye, F., Liu, X., Zhang, J., Liu, H., Li, J., Zhang, Y., Sun, Y., Wang, M., Luo, C., Jiang, H., Lan, L., Gan, J., Zhang, A., Zhou, H., Yang, C.-G.

(2016) ACS Chem Biol 11: 1964-1972

  • DOI: 10.1021/acschembio.6b00390
  • Primary Citation of Related Structures:  
    5C90

  • PubMed Abstract: 

    • ATP-dependent Clp protease (ClpP), a highly conserved serine protease in vast bacteria, could be converted into a noncontrollable enzyme capable of degrading mature proteins in the presence of acyldepsipeptides (ADEPs). Here, we design such a gain-of-function mutant of Staphylococcus aureus ClpP (SaClpP) capable of triggering the same level of dysfunctional activity that occurs upon ADEPs treatment ...

    ATP-dependent Clp protease (ClpP), a highly conserved serine protease in vast bacteria, could be converted into a noncontrollable enzyme capable of degrading mature proteins in the presence of acyldepsipeptides (ADEPs). Here, we design such a gain-of-function mutant of Staphylococcus aureus ClpP (SaClpP) capable of triggering the same level of dysfunctional activity that occurs upon ADEPs treatment. The SaClpPY63A mutant degrades FtsZ in vivo and inhibits staphylococcal growth. The crystal structure of SaClpPY63A indicates that Asn42 would be an important domino to fall for further activation of ClpP. Indeed, the SaClpPN42AY63A mutant demonstrates promoted self-activated proteolysis, which is a result of an enlarged entrance pore as observed in cryo-electron microscopy images. In addition, the expression of the engineered clpP allele phenocopies treatment with ADEPs; inhibition of cell division occurs as does showing sterilizing with rifampicin antibiotics. Collectively, we show that the gain-of-function SaClpPN42AY63A mutant becomes a fairly nonspecific protease and kills persisters by degrading over 500 proteins, thus providing new insights into the structure of the ClpP protease.

    Organizational Affiliation: 

    University of Chinese Academy of Sciences , Beijing 100049, China.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ATP-dependent Clp protease proteolytic subunit
A, B, C, D, E, F, G, H, I, J, K, L, M, N
A, B, C, D, E, F, G, H, I, J, K, L, M, N
195Staphylococcus aureusMutation(s): 1 
Gene Names: clpP, SAOUHSC_00790
EC: 3.4.21.92
UniProt
Find proteins for Q2G036 (Staphylococcus aureus (strain NCTC 8325 / PS 47))
Explore Q2G036 
Go to UniProtKB:  Q2G036
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ2G036
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.183 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 94.359α = 90
b = 126.237β = 93.74
c = 145.647γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report



View more in-depth experimental data
Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-05-25
    Type: Initial release
  • Version 1.1: 2016-07-27
    Changes: Database references