1UQR

Type II 3-dehydroquinate dehydratase (DHQase) from Actinobacillus pleuropneumoniae


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Study of the Type II 3-Dehydroquinate Dehydratase from Actinobacillus Pleuropneumoniae

Maes, D.Gonzalez-Ramirez, L.A.Lopez-Jaramillo, J.Yu, B.De Bondt, H.Zegers, I.Afonina, E.Garcia-Ruiz, J.M.Gulnik, S.

(2004) Acta Crystallogr.,Sect.D 60: 463

  • DOI: 10.1107/S090744490302969X

  • PubMed Abstract: 
  • The structure of the type II dehydroquinate dehydratase (DHQase) from Actinobacillus pleuropneumoniae, the third enzyme of the shikimate pathway, has been determined. Crystals diffracting to 1.7 A were obtained in space and on earth using the counter ...

    The structure of the type II dehydroquinate dehydratase (DHQase) from Actinobacillus pleuropneumoniae, the third enzyme of the shikimate pathway, has been determined. Crystals diffracting to 1.7 A were obtained in space and on earth using the counter-diffusion technique. The structure was solved using molecular replacement and refined to high resolution. The overall structure of the dodecameric enzyme is described and compared with structures of DHQases from other bacteria. DHQases contain a flexible loop that presumably closes over the active site upon substrate binding. The enzyme can exist in an open or closed conformation. The present structure displays the open conformation, with a sulfate anion bound in the active site. The availability of this structure opens a route to structure-based antibiotics targetting this pathogenic bacterium.


    Organizational Affiliation

    ULTR, Vrije Universiteit Brussel, Vlaams Interuniversitair Instituut voor Biotechnologie (VIB), Pleinlaan 2, 1050 Brussels, Belgium. dominique.maes@vub.ac.be




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3-DEHYDROQUINATE DEHYDRATASE
A, B, C, D, E, F, G, H, I, J, K, L
154Actinobacillus pleuropneumoniaeMutation(s): 0 
Gene Names: aroQ
EC: 4.2.1.10
Find proteins for P43877 (Actinobacillus pleuropneumoniae)
Go to UniProtKB:  P43877
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
TRS
Query on TRS

Download SDF File 
Download CCD File 
B, E, H, K
2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
TRIS BUFFER
C4 H12 N O3
LENZDBCJOHFCAS-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.178 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 129.095α = 90.00
b = 131.333β = 90.00
c = 161.619γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
CNSrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-10-30
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance