4HT4

Molecular Basis of Vancomycin Resistance Transfer in Staphylococcus aureus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.91 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.232 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Molecular basis of antibiotic multiresistance transfer in Staphylococcus aureus.

Edwards, J.S.Betts, L.Frazier, M.L.Pollet, R.M.Kwong, S.M.Walton, W.G.Ballentine, W.K.Huang, J.J.Habibi, S.Del Campo, M.Meier, J.L.Dervan, P.B.Firth, N.Redinbo, M.R.

(2013) Proc Natl Acad Sci U S A 110: 2804-2809

  • DOI: 10.1073/pnas.1219701110
  • Primary Citation of Related Structures:  
    4HT4, 4HTE

  • PubMed Abstract: 
  • Multidrug-resistant Staphylococcus aureus infections pose a significant threat to human health. Antibiotic resistance is most commonly propagated by conjugative plasmids like pLW1043, the first vancomycin-resistant S. aureus vector identified in humans. We present the molecular basis for resistance transmission by the nicking enzyme in S ...

    Multidrug-resistant Staphylococcus aureus infections pose a significant threat to human health. Antibiotic resistance is most commonly propagated by conjugative plasmids like pLW1043, the first vancomycin-resistant S. aureus vector identified in humans. We present the molecular basis for resistance transmission by the nicking enzyme in S. aureus (NES), which is essential for conjugative transfer. NES initiates and terminates the transfer of plasmids that variously confer resistance to a range of drugs, including vancomycin, gentamicin, and mupirocin. The NES N-terminal relaxase-DNA complex crystal structure reveals unique protein-DNA contacts essential in vitro and for conjugation in S. aureus. Using this structural information, we designed a DNA minor groove-targeted polyamide that inhibits NES with low micromolar efficacy. The crystal structure of the 341-residue C-terminal region outlines a unique architecture; in vitro and cell-based studies further establish that it is essential for conjugation and regulates the activity of the N-terminal relaxase. This conclusion is supported by a small-angle X-ray scattering structure of a full-length, 665-residue NES-DNA complex. Together, these data reveal the structural basis for antibiotic multiresistance acquisition by S. aureus and suggest novel strategies for therapeutic intervention.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC 27599, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Nicking enzymeA195Staphylococcus aureusMutation(s): 1 
Gene Names: nesNES from pLW1043
Find proteins for Q53632 (Staphylococcus aureus)
Explore Q53632 
Go to UniProtKB:  Q53632
Protein Feature View
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  • Reference Sequence
Find similar nucleic acids by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsLengthOrganismImage
DNA (28-MER)B28N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.91 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.232 
  • Space Group: P 64 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.226α = 90
b = 63.226β = 90
c = 313.756γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing
RESOLVEphasing
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2012-10-31 
  • Released Date: 2013-01-30 
  • Deposition Author(s): Edwards, J.S.

Revision History  (Full details and data files)

  • Version 1.0: 2013-01-30
    Type: Initial release
  • Version 1.1: 2013-02-13
    Changes: Database references
  • Version 1.2: 2013-03-06
    Changes: Database references
  • Version 1.3: 2017-11-15
    Changes: Advisory, Refinement description