1ZOW

Crystal Structure of S. aureus FabH, beta-ketoacyl carrier protein synthase III


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure and substrate specificity of the beta-ketoacyl-acyl carrier protein synthase III (FabH) from Staphylococcus aureus.

Qiu, X.Choudhry, A.E.Janson, C.A.Grooms, M.Daines, R.A.Lonsdale, J.T.Khandekar, S.S.

(2005) Protein Sci 14: 2087-2094

  • DOI: 10.1110/ps.051501605
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • beta-Ketoacyl-ACP synthase III (FabH), an essential enzyme for bacterial viability, catalyzes the initiation of fatty acid elongation by condensing malonyl-ACP with acetyl-CoA. We have determined the crystal structure of FabH from Staphylococcus aure ...

    beta-Ketoacyl-ACP synthase III (FabH), an essential enzyme for bacterial viability, catalyzes the initiation of fatty acid elongation by condensing malonyl-ACP with acetyl-CoA. We have determined the crystal structure of FabH from Staphylococcus aureus, a Gram-positive human pathogen, to 2 A resolution. Although the overall structure of S. aureus FabH is similar to that of Escherichia coli FabH, the primer binding pocket in S. aureus FabH is significantly larger than that present in E. coli FabH. The structural differences, which agree with kinetic parameters, provide explanation for the observed varying substrate specificity for E. coli and S. aureus FabH. The rank order of activity of S. aureus FabH with various acyl-CoA primers was as follows: isobutyryl- > hexanoyl- > butyryl- > isovaleryl- > acetyl-CoA. The availability of crystal structure may aid in designing potent, selective inhibitors of S. aureus FabH.


    Organizational Affiliation

    GlaxoSmithKline, King of Prussia, Pennsylvania 19406, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3-oxoacyl-[acyl-carrier-protein] synthase IIIA, B, C, D313Staphylococcus aureus subsp. aureus MW2Mutation(s): 0 
Gene Names: fabHMW0865
EC: 2.3.1.41 (PDB Primary Data), 2.3.1.180 (UniProt)
Find proteins for Q8NXE2 (Staphylococcus aureus (strain MW2))
Explore Q8NXE2 
Go to UniProtKB:  Q8NXE2
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.211 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.9α = 90
b = 93.6β = 93.9
c = 110γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-08-09
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance