1ZOW

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

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.256 
  • R-Value Work: 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

  • 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 III
A, B, C, D
313Staphylococcus aureus (strain MW2)Mutation(s): 0 
Gene Names: fabH
EC: 2.3.1.180
Find proteins for Q8NXE2 (Staphylococcus aureus (strain MW2))
Go to UniProtKB:  Q8NXE2
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.211 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 63.900α = 90.00
b = 93.600β = 93.90
c = 110.000γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
CNSrefinement
SCALEPACKdata scaling
DENZOdata reduction

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
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance