3BS1

Structure of the Staphylococcus aureus AgrA LytTR Domain Bound to DNA Reveals a Beta Fold with a Novel Mode of Binding

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 

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


Literature

Structure of the Staphylococcus aureus AgrA LytTR Domain Bound to DNA Reveals a Beta Fold with an Unusual Mode of Binding.

Sidote, D.J., Barbieri, C.M., Wu, T., Stock, A.M.

(2008) Structure 16: 727-735

  • DOI: 10.1016/j.str.2008.02.011
  • Primary Citation of Related Structures:  
    3BS1

  • PubMed Abstract: 

    • The LytTR domain is a DNA-binding motif found within the AlgR/AgrA/LytR family of transcription factors that regulate virulence factor and toxin gene expression in pathogenic bacteria. This previously uncharacterized domain lacks sequence similarity with proteins of known structure ...

    The LytTR domain is a DNA-binding motif found within the AlgR/AgrA/LytR family of transcription factors that regulate virulence factor and toxin gene expression in pathogenic bacteria. This previously uncharacterized domain lacks sequence similarity with proteins of known structure. The crystal structure of the DNA-binding domain of Staphylococcus aureus AgrA complexed with a DNA pentadecamer duplex has been determined at 1.6 A resolution. The structure establishes a 10-stranded beta fold for the LytTR domain and reveals its mode of interaction with DNA. Residues within loop regions of AgrA contact two successive major grooves and the intervening minor groove on one face of the oligonucleotide duplex, inducing a substantial bend in the DNA. Loss of DNA binding upon substitution of key interacting residues in AgrA supports the observed binding mode. This mode of protein-DNA interaction provides a potential target for future antimicrobial drug design.

    Organizational Affiliation: 

    Center for Advanced Biotechnology and Medicine and Department of Biochemistry, Howard Hughes Medical Institute, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, 679 Hoes Lane, Piscataway, NJ 08854, USA.



Macromolecules

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(by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Accessory gene regulator protein AC [auth A]103Staphylococcus aureusMutation(s): 0 
Gene Names: agrA, agr
UniProt
Find proteins for P0A0I7 (Staphylococcus aureus)
Explore P0A0I7 
Go to UniProtKB:  P0A0I7
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*DTP*DTP*DTP*DAP*DAP*DCP*DAP*DGP*DTP*DTP*DAP*DAP*DGP*(BRU)P*DAP*DT)-3')A [auth B]16N/A
    Protein Feature View
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    • Reference Sequence
    • Find similar nucleic acids by:  Sequence   |   Structure
      • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      DNA (5'-D(*DAP*DAP*(BRU)P*DAP*DCP*DTP*DTP*DAP*DAP*DCP*DTP*DGP*DTP*DTP*DAP*DA)-3')B [auth C]16N/A
      Protein Feature View
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      • Reference Sequence
      Small Molecules
      Ligands 1 Unique
      IDChainsName / Formula / InChI Key2D Diagram3D Interactions
      MG
      Query on MG
      Download Ideal Coordinates CCD File 
      		D [auth A], E [auth A]MAGNESIUM ION
      Mg
      JLVVSXFLKOJNIY-UHFFFAOYSA-N      		 Ligand Interaction
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 1.60 Å
      • R-Value Free: 0.221 
      • R-Value Work: 0.195 
      • R-Value Observed: 0.197 
      • Space Group: P 41
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 47.938α = 90
      b = 47.938β = 90
      c = 100.112γ = 90
      Software Package:
      Software NamePurpose
      REFMACrefinement
      ADSCdata collection
      HKL-2000data reduction
      HKL-2000data scaling
      SHARPphasing

      Structure Validation

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      Entry History 

      Deposition Data

      Revision History  (Full details and data files)

      • Version 1.0: 2008-04-08
        Type: Initial release
      • Version 1.1: 2011-07-13
        Changes: Version format compliance