2Y71

Structure of Mycobacterium tuberculosis type II dehydroquinase complexed with (1R,4S,5R)-1,4,5-trihydroxy-3-((5-methylbenzo(b) thiophen-2-yl)methoxy)cyclohex-2-enecarboxylate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.161 
  • R-Value Work: 0.125 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A prodrug approach for improving antituberculosis activity of potent Mycobacterium tuberculosis type II dehydroquinase inhibitors.

Tizon, L.Otero, J.M.Prazeres, V.F.Llamas-Saiz, A.L.Fox, G.C.van Raaij, M.J.Lamb, H.Hawkins, A.R.Ainsa, J.A.Castedo, L.Gonzalez-Bello, C.

(2011) J. Med. Chem. 54: 6063-6084

  • DOI: 10.1021/jm2006063
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The synthesis of high-affinity reversible competitive inhibitors of Mycobacterium tuberculosis type II dehydroquinase, an essential enzyme in Mycobacterium tuberculosis bacteria, is reported. The inhibitors reported here are mimics of the enol interm ...

    The synthesis of high-affinity reversible competitive inhibitors of Mycobacterium tuberculosis type II dehydroquinase, an essential enzyme in Mycobacterium tuberculosis bacteria, is reported. The inhibitors reported here are mimics of the enol intermediate and the effect of substitution on C2 was studied. The crystal structures of Mycobacterium tuberculosis type II dehydroquinase in complex with three of the reported inhibitors are also described. The results show that an aromatic substituent on C2 prevents the closure of the active site by impeding the hydrogen-bonding interaction of Arg108 with the essential Tyr24 of the flexible loop, the residue that initiates catalysis. Chemical modifications of the reported acids were also carried out to improve internalization into Mycobacterium tuberculosis through an ester prodrug approach. Propyl esters proved to be the most efficient in achieving optimal in vitro activities.


    Organizational Affiliation

    Centro Singular de Investigación en Química Biológica y Materiales Moleculares, Universidad de Santiago de Compostela, calle Jenaro de la Fuente s/n, 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
CB6
Query on CB6

Download SDF File 
Download CCD File 
A
(1R,4S,5R)-1,4,5-trihydroxy-3-[(5-methyl-1-benzothiophen-2-yl)methoxy]cyclohex-2-ene-1-carboxylic acid
C17 H18 O6 S
BNUWPGVZRDEWEX-ISTRZQFTSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
CB6Ki: 42.5 nM BINDINGMOAD
CB6Ki: 42.5 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.161 
  • R-Value Work: 0.125 
  • Space Group: F 2 3
Unit Cell:
Length (Å)Angle (°)
a = 126.650α = 90.00
b = 126.650β = 90.00
c = 126.650γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
MOSFLMdata reduction
REFMACrefinement
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-08-17
    Type: Initial release
  • Version 1.1: 2011-09-14
    Type: Database references
  • Version 1.2: 2018-02-07
    Type: Database references