6E95

Chimeric structure of Saccharomyces cerevisiae GCN4 leucine zipper fused to Staphylococcus aureus AgrC cytoplasmic histidine kinase module (dataset isotropically truncated by HKL2000)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.222 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Identification of a Molecular Latch that Regulates Staphylococcal Virulence.

Xie, Q.Zhao, A.Jeffrey, P.D.Kim, M.K.Bassler, B.L.Stone, H.A.Novick, R.P.Muir, T.W.

(2019) Cell Chem Biol 26: 548-558.e4

  • DOI: 10.1016/j.chembiol.2019.01.006
  • Primary Citation of Related Structures:  
    6E52, 6E95

  • PubMed Abstract: 
  • Virulence induction in the Staphylococcus aureus is under the control of a quorum sensing (QS) circuit encoded by the accessory gene regulator (agr) locus. Allelic variation within agr produces four QS specificity groups, each producing a unique secreted autoinducer peptide (AIP) and receptor histidine kinase (RHK), AgrC ...

    Virulence induction in the Staphylococcus aureus is under the control of a quorum sensing (QS) circuit encoded by the accessory gene regulator (agr) locus. Allelic variation within agr produces four QS specificity groups, each producing a unique secreted autoinducer peptide (AIP) and receptor histidine kinase (RHK), AgrC. Cognate AIP-AgrC interactions activate virulence through a two-component signaling cascade, whereas non-cognate pairs are generally inhibitory. Here we pinpoint a key hydrogen-bonding interaction within AgrC that acts as a switch to convert helical motions propagating from the receptor sensor domain into changes in inter-domain association within the kinase module. AgrC mutants lacking this interaction are constitutively active in vitro and in vivo, the latter leading to a pronounced attenuation of S. aureus biofilm formation. Thus, our work sheds light on the regulation of this biomedically important RHK.


    Organizational Affiliation

    Department of Chemistry, Princeton University, Frick Chemistry Laboratory, Washington Road, Princeton, NJ 08544-0015, USA. Electronic address: muir@princeton.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Staphylococcus aureus AgrC histidine kinase module fused to Saccharomyces cerevisiae GCN4 leucine zipperA, B250Saccharomyces cerevisiae S288CStaphylococcus aureus
This entity is chimeric
Mutation(s): 0 
Gene Names: GCN4AAS3ARG9YEL009CagrC
UniProt
Find proteins for P03069 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P03069 
Go to UniProtKB:  P03069
Find proteins for A0A224B0L3 (Staphylococcus aureus)
Explore A0A224B0L3 
Go to UniProtKB:  A0A224B0L3
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.222 
  • Space Group: P 2 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.141α = 90
b = 83.375β = 90
c = 146.966γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing
Cootmodel building

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesAI042783
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM095880

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-27
    Type: Initial release
  • Version 1.1: 2019-03-06
    Changes: Data collection, Database references
  • Version 1.2: 2019-05-01
    Changes: Data collection, Database references
  • Version 1.3: 2019-12-18
    Changes: Author supporting evidence