5NR7

Mtb TMK crystal structure in complex with compound 43


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Structure Guided Lead Generation toward Nonchiral M. tuberculosis Thymidylate Kinase Inhibitors.

Song, L.Merceron, R.Gracia, B.Quintana, A.L.Risseeuw, M.D.P.Hulpia, F.Cos, P.Ainsa, J.A.Munier-Lehmann, H.Savvides, S.N.Van Calenbergh, S.

(2018) J Med Chem 61: 2753-2775

  • DOI: 10.1021/acs.jmedchem.7b01570
  • Primary Citation of Related Structures:  
    5NR7, 5NQ5

  • PubMed Abstract: 
  • In recent years, thymidylate kinase (TMPK), an enzyme indispensable for bacterial DNA biosynthesis, has been pursued for the development of new antibacterial agents including against Mycobacterium tuberculosis, the causative agent for the widespread infectious disease tuberculosis (TB) ...

    In recent years, thymidylate kinase (TMPK), an enzyme indispensable for bacterial DNA biosynthesis, has been pursued for the development of new antibacterial agents including against Mycobacterium tuberculosis, the causative agent for the widespread infectious disease tuberculosis (TB). In response to a growing need for more effective anti-TB drugs, we have built upon our previous efforts toward the exploration of novel and potent Mycobacterium tuberculosis TMPK ( MtTMPK) inhibitors, and reported here the design of a novel series of non-nucleoside inhibitors of MtTMPK. The inhibitors display hitherto unexplored interactions in the active site of MtTMPK, offering new insights into structure-activity relationships. To investigate the discrepancy between enzyme inhibitory activity and the whole-cell activity, experiments with efflux pump inhibitors and efflux pump knockout mutants were performed. The minimum inhibitory concentrations of particular inhibitors increased significantly when determined for the efflux pump mmr knockout mutant, which partly explains the observed dissonance.


    Organizational Affiliation

    Laboratory for Medicinal Chemistry (FFW) , Ghent University , Ottergemsesteenweg 460 , B-9000 Gent , Belgium.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Thymidylate kinaseA, B214Mycobacterium tuberculosis H37RvMutation(s): 0 
Gene Names: tmkRv3247c
EC: 2.7.4.9
UniProt
Find proteins for P9WKE1 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WKE1 
Go to UniProtKB:  P9WKE1
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
YUI (Subject of Investigation/LOI)
Query on YUI

Download Ideal Coordinates CCD File 
C [auth A], E [auth B]1-[1-[[4-(3-chloranylphenoxy)quinolin-2-yl]methyl]piperidin-4-yl]-5-methyl-pyrimidine-2,4-dione
C26 H25 Cl N4 O3
DAZGAHYHWTYXTL-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
D [auth A], F [auth B]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
YUI Binding MOAD:  5NR7 IC50: 950 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 
  • Space Group: P 32
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.63α = 90
b = 73.63β = 90
c = 72.86γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-03-21
    Type: Initial release
  • Version 1.1: 2018-03-28
    Changes: Database references
  • Version 1.2: 2018-04-25
    Changes: Data collection, Database references