4B0I

Crystal Structure of 3-hydroxydecanoyl-Acyl Carrier Protein Dehydratase (FabA) mutant (H70N) from Pseudomonas aeruginosa in complex with 3-hydroxydecanoyl-N-acetyl cysteamine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.03 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

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

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:  
    4B8U, 4FQ9, 4B0J, 4B0B, 4B0C, 4B0I

  • 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 key step in fatty acid biosynthesis; both dehydrate hydroxyacyl fatty acids that are coupled via a phosphopantetheine to an acyl carrier protein (ACP) ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
3-HYDROXYDECANOYL-[ACYL-CARRIER-PROTEIN] DEHYDRATASEA, B, C, D, E171Pseudomonas aeruginosa PAO1Mutation(s): 1 
Gene Names: fabAPA1610
EC: 4.2.1.60 (PDB Primary Data), 4.2.1.59 (UniProt), 5.3.3.14 (UniProt)
UniProt
Find proteins for O33877 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore O33877 
Go to UniProtKB:  O33877
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
KBP (Subject of Investigation/LOI)
Query on KBP

Download Ideal Coordinates CCD File 
F [auth A], G [auth B], H [auth C], I [auth D], J [auth E]S-[2-(acetylamino)ethyl] (3R)-3-hydroxydecanethioate
C14 H27 N O3 S
AKKZYNFGIOAWKB-CYBMUJFWSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.03 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 110.791α = 90
b = 169.686β = 90
c = 108.3γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-11-28
    Type: Initial release
  • Version 1.1: 2013-01-16
    Changes: Database references