4CIW

Crystal structure of Mycobacterium tuberculosis type 2 dehydroquinase in complex with (1R,4R,5R)-1,4,5-trihydroxy-3-(2-hydroxy)ethylcyclohex-2-ene-1-carboxylic acid


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.142 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Exploring the water-binding pocket of the type II dehydroquinase enzyme in the structure-based design of inhibitors.

Blanco, B.Sedes, A.Peon, A.Otero, J.M.van Raaij, M.J.Thompson, P.Hawkins, A.R.Gonzalez-Bello, C.

(2014) J. Med. Chem. 57: 3494-3510

  • DOI: 10.1021/jm500175z
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Structural and computational studies to explore the WAT1 binding pocket in the structure-based design of inhibitors against the type II dehydroquinase (DHQ2) enzyme are reported. The crystal structures of DHQ2 from M. tuberculosis in complex with fou ...

    Structural and computational studies to explore the WAT1 binding pocket in the structure-based design of inhibitors against the type II dehydroquinase (DHQ2) enzyme are reported. The crystal structures of DHQ2 from M. tuberculosis in complex with four of the reported compounds are described. The electrostatic interaction observed between the guanidinium group of the essential arginine and the carboxylate group of one of the inhibitors in the reported crystal structures supports the recently suggested role of this arginine as the residue that triggers the release of the product from the active site. The results of the structural and molecular dynamics simulation studies revealed that the inhibitory potency is favored by promoting interactions with WAT1 and the residues located within this pocket and, more importantly, by avoiding situations where the ligands occupy the WAT1 binding pocket. The new insights can be used to advantage in the structure-based design of inhibitors.


    Organizational Affiliation

    Centro Singular de Investigación en Química Biológica y Materiales Moleculares (CIQUS), Universidad de Santiago de Compostela , 15782 Santiago de Compostela, Spain.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3-DEHYDROQUINATE DEHYDRATASE
A
146Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: aroQ (aroD)
EC: 4.2.1.10
Find proteins for P9WPX7 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WPX7
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
XH2
Query on XH2

Download SDF File 
Download CCD File 
A
(1R,4R,5R)-1,4,5-trihydroxy-3-(2-hydroxy)ethylcyclohex-2-ene-1-carboxylic acid
C9 H14 O6
HVNZLWXJZRWNGG-BHNWBGBOSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
XH2Ki: 15000 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.142 
  • Space Group: F 2 3
Unit Cell:
Length (Å)Angle (°)
a = 126.380α = 90.00
b = 126.380β = 90.00
c = 126.380γ = 90.00
Software Package:
Software NamePurpose
SCALEdata scaling
XDSdata reduction
MOLREPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-04-16
    Type: Initial release
  • Version 1.1: 2014-05-07
    Type: Database references
  • Version 1.2: 2018-01-24
    Type: Database references