4XYC

NANOMOLAR INHIBITORS OF MYCOBACTERIUM TUBERCULOSIS GLUTAMINE SYNTHETASE 1: SYNTHESIS, BIOLOGICAL EVALUATION AND X-RAY CRYSTALLOGRAPHIC STUDIES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Nanomolar inhibitors of Mycobacterium tuberculosis glutamine synthetase 1: Synthesis, biological evaluation and X-ray crystallographic studies.

Couturier, C.Silve, S.Morales, R.Pessegue, B.Llopart, S.Nair, A.Bauer, A.Scheiper, B.Poverlein, C.Ganzhorn, A.Lagrange, S.Bacque, E.

(2015) Bioorg.Med.Chem.Lett. 25: 1455-1459

  • DOI: 10.1016/j.bmcl.2015.02.035

  • PubMed Abstract: 
  • A series of imidazo[1,2-a]indeno[1,2-e]pyrazin-4-ones that potently inhibit M. tuberculosis glutamine synthetase (GlnA1) has been identified by high throughput screening. Exploration of this series was performed owing to a short chemistry program. De ...

    A series of imidazo[1,2-a]indeno[1,2-e]pyrazin-4-ones that potently inhibit M. tuberculosis glutamine synthetase (GlnA1) has been identified by high throughput screening. Exploration of this series was performed owing to a short chemistry program. Despite possibly nanomolar inhibitions, none of these compounds was active on whole cell Mtb, suggesting that GlnA1 may not be a suitable target to find new anti-tubercular drugs.


    Organizational Affiliation

    Sanofi R&D, DPU early to candidate, 16 rue d'Ankara, 67080 Strasbourg, France.,Sanofi R&D, TSU Infectious Disease, 195, route d'Espagne BP 13669, 31036 Toulouse Cedex 1, France. Electronic address: cedric.couturier@sanofi.com.,Sanofi R&D, SCP Biologics, 195, route d'Espagne BP 13669, 31036 Toulouse Cedex 1, France.,Sanofi R&D, TSU Infectious Disease, 195, route d'Espagne BP 13669, 31036 Toulouse Cedex 1, France.,Sanofi R&D, Lead Generation and Candidate Realization, Structure Design and Informatics, 195, route d'Espagne BP 13669, 31036 Toulouse Cedex 1, France.,Sanofi Deutschland GmbH, Lead Generation and Candidate Realization, Industriepark Hoechst, 65926 Frankfurt am Main, Germany.,Sanofi R&D, Lead Generation and Candidate Realization, 2090 East Innovation Park Drive, 85755-1965 OroValley, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glutamine synthetase 1
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X
478Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh)Mutation(s): 0 
Gene Names: glnA1 (glnA)
EC: 6.3.1.2
Find proteins for P9WN38 (Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh))
Go to UniProtKB:  P9WN38
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2K9
Query on 2K9

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X
9-phenyl-4H-imidazo[1,2-a]indeno[1,2-e]pyrazin-4-one
C19 H11 N3 O
SFZNDQGUHVYHPD-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.200 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 260.112α = 90.00
b = 273.497β = 90.00
c = 207.634γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
AMoREphasing
REFMACrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-03-25
    Type: Initial release
  • Version 1.1: 2015-04-01
    Type: Database references