2ZCO

Crystal structure of the C(30) carotenoid dehydrosqualene synthase from Staphylococcus aureus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.58 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

A cholesterol biosynthesis inhibitor blocks Staphylococcus aureus virulence.

Liu, C.I.Liu, G.Y.Song, Y.Yin, F.Hensler, M.E.Jeng, W.Y.Nizet, V.Wang, A.H.Oldfield, E.

(2008) Science 319: 1391-1394

  • DOI: 10.1126/science.1153018
  • Primary Citation of Related Structures:  
  • Also Cited By: 3VJE, 3VJD, 3AE0, 3ADZ, 3ACY, 3ACX, 3ACW, 2ZY1

  • PubMed Abstract: 
  • Staphylococcus aureus produces hospital- and community-acquired infections, with methicillin-resistant S. aureus posing a serious public health threat. The golden carotenoid pigment of S. aureus, staphyloxanthin, promotes resistance to reactive oxyge ...

    Staphylococcus aureus produces hospital- and community-acquired infections, with methicillin-resistant S. aureus posing a serious public health threat. The golden carotenoid pigment of S. aureus, staphyloxanthin, promotes resistance to reactive oxygen species and host neutrophil-based killing, and early enzymatic steps in staphyloxanthin production resemble those for cholesterol biosynthesis. We determined the crystal structures of S. aureus dehydrosqualene synthase (CrtM) at 1.58 angstrom resolution, finding structural similarity to human squalene synthase (SQS). We screened nine SQS inhibitors and determined the structures of three, bound to CrtM. One, previously tested for cholesterol-lowering activity in humans, blocked staphyloxanthin biosynthesis in vitro (median inhibitory concentration approximately 100 nM), resulting in colorless bacteria with increased susceptibility to killing by human blood and to innate immune clearance in a mouse infection model. This finding represents proof of principle for a virulence factor-based therapy against S. aureus.


    Organizational Affiliation

    Institute of Biological Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Dehydrosqualene synthase
A
293Staphylococcus aureusMutation(s): 0 
Gene Names: crtM
EC: 2.5.1.96
Find proteins for A9JQL9 (Staphylococcus aureus)
Go to UniProtKB:  A9JQL9
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.58 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.187 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 80.410α = 90.00
b = 80.410β = 90.00
c = 90.200γ = 120.00
Software Package:
Software NamePurpose
SOLVEphasing
HKL-2000data scaling
CNSrefinement
HKL-2000data collection
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-03-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance