3D6L

Crystal structure of Cj0915, a hexameric hotdog fold thioesterase of Campylobacter jejuni


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.59 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure and function of a Campylobacter jejuni thioesterase Cj0915, a hexameric hot dog fold enzyme.

Yokoyama, T.Choi, K.J.Bosch, A.M.Yeo, H.J.

(2009) Biochim.Biophys.Acta 1794: 1073-1081

  • DOI: 10.1016/j.bbapap.2009.03.002

  • PubMed Abstract: 
  • Acyl-coenzyme A (CoA) thioesterases are a large family of enzymes that hydrolyze acyl-CoA esters to the free fatty acid and CoA and thereby regulate essential cellular functions such as lipid metabolism, membrane synthesis, signal transduction, and g ...

    Acyl-coenzyme A (CoA) thioesterases are a large family of enzymes that hydrolyze acyl-CoA esters to the free fatty acid and CoA and thereby regulate essential cellular functions such as lipid metabolism, membrane synthesis, signal transduction, and gene transcription. To better understand the virulence mechanisms of Campylobacter jejuni, and its possible link to membrane lipid biosynthesis, we have investigated C. jejuni thioesterases, annotated as putative proteins. While little is known about fatty acid biosynthesis and regulation in C. jejuni, remarkable differences in the genome and its organization from Escherichia coli, the paradigm system, raise questions as to the functions of these putative proteins. Here we present the crystal structure and biochemical analysis of Cj0915, defining the first functional thioesterase from C. jejuni. The structure of Cj0915 reveals the hot dog fold with an YciA-type hexameric assembly. Enzymatic assays performed with the purified protein show that Cj0915 is an efficient thioesterase with a broad specificity toward acyl-CoA substrates. This study provides a framework for investigation on roles of the Cj0915 thioesterase in virulence, and functional activities associated with the Cj0915 thioesterase in vivo.


    Organizational Affiliation

    Department of Biology and Biochemistry, University of Houston, Houston, TX 77204, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Putative hydrolase
A
137Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC 11168)Mutation(s): 0 
Find proteins for Q0P9Y4 (Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC 11168))
Go to UniProtKB:  Q0P9Y4
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.59 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.207 
  • Space Group: P 41 3 2
Unit Cell:
Length (Å)Angle (°)
a = 103.018α = 90.00
b = 103.018β = 90.00
c = 103.018γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
HKL-3000data collection
SCALEPACKdata scaling
HKL-3000data reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-05-05
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance