6E52

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

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.93 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.221 

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 S288C, Staphylococcus aureus subsp. aureus Z172
This entity is chimeric		Mutation(s): 0 
Gene Names: GCN4, AAS3, ARG9, YEL009C, agrC, SAZ172_2038
UniProt
Find proteins for P03069 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P03069 
Go to UniProtKB:  P03069
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.93 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.221 
  • 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

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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