4B8U

Crystal Structure of 3-hydroxydecanoyl-Acyl Carrier Protein Dehydratase (FabA) from Pseudomonas aeruginosa in complex with N- isobutyl-2-(5-(2-thienyl)-1,2-oxazol-3-yl-)methoxy)acetamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.76 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Insights Into the Mechanism and Inhibition of the Beta-Hydroxydecanoyl-Acyl Carrier Protein Dehydratase from Pseudomonasaeruginosa.

Moynie, L.Leckie, S.M.Mcmahon, S.A.Duthie, F.G.Koehnke, A.Taylor, J.W.Alphey, M.S.Brenk, R.Smith, A.D.Naismith, J.H.

(2013) J.Mol.Biol. 425: 365

  • DOI: 10.1016/j.jmb.2012.11.017
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Fatty acid biosynthesis is an essential component of metabolism in both eukaryotes and prokaryotes. The fatty acid biosynthetic pathway of Gram-negative bacteria is an established therapeutic target. Two homologous enzymes FabA and FabZ catalyze a ke ...

    Fatty acid biosynthesis is an essential component of metabolism in both eukaryotes and prokaryotes. The fatty acid biosynthetic pathway of Gram-negative bacteria is an established therapeutic target. Two homologous enzymes FabA and FabZ catalyze a key step in fatty acid biosynthesis; both dehydrate hydroxyacyl fatty acids that are coupled via a phosphopantetheine to an acyl carrier protein (ACP). The resulting trans-2-enoyl-ACP is further polymerized in a processive manner. FabA, however, carries out a second reaction involving isomerization of trans-2-enoyl fatty acid to cis-3-enoyl fatty acid. We have solved the structure of Pseudomonas aeruginosa FabA with a substrate allowing detailed molecular insight into the interactions of the active site. This has allowed a detailed examination of the factors governing the second catalytic step. We have also determined the structure of FabA in complex with small molecules (so-called fragments). These small molecules occupy distinct regions of the active site and form the basis for a rational inhibitor design program.


    Organizational Affiliation

    Biomedical Sciences Research Complex, The University, St. Andrews KY16 9ST, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3-HYDROXYDECANOYL-[ACYL-CARRIER-PROTEIN] DEHYDRATASE
A, B, C, D, E
171Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)Mutation(s): 0 
Gene Names: fabA
EC: 4.2.1.59
Find proteins for O33877 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Go to UniProtKB:  O33877
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
C
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
IBK
Query on IBK

Download SDF File 
Download CCD File 
B
N-isobutyl-2-{[5-(thiophen-2-yl)-1,2-oxazol-3-yl]methoxy}acetamide
C14 H18 N2 O3 S
UJFGIBAYRIRNOV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.76 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.183 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 113.900α = 90.00
b = 143.670β = 116.51
c = 78.000γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
REFMACrefinement
PHASERphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-09-26
    Type: Initial release
  • Version 1.1: 2012-11-28
    Type: Database references, Other
  • Version 1.2: 2013-01-16
    Type: Database references