4XYC image
Deposition Date 2015-02-02
Release Date 2015-03-25
Last Version Date 2024-01-10
Entry Detail
PDB ID:
4XYC
Keywords:
LIGASE/LIGASE INHIBITOR
Title:
NANOMOLAR INHIBITORS OF MYCOBACTERIUM TUBERCULOSIS GLUTAMINE SYNTHETASE 1: SYNTHESIS, BIOLOGICAL EVALUATION AND X-RAY CRYSTALLOGRAPHIC STUDIES
Biological Source:
Source Organism:
Mycobacterium tuberculosis (Taxon ID: 1773)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
3.30 Å
R-Value Free:
0.26
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
P 21 21 21
4XYC validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Glutamine synthetase 1
Gene (Uniprot):glnA1
Chain IDs:A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X
Chain Length:478
Number of Molecules:24
Biological Source:Mycobacterium tuberculosis
UniProt ID:P9WN38 Pfam ID:PF03951, PF00120
Primary Citation
Nanomolar inhibitors of Mycobacterium tuberculosis glutamine synthetase 1: Synthesis, biological evaluation and X-ray crystallographic studies.
Bioorg.Med.Chem.Lett. 25 1455 1459 (2015)
PMID: 25770781 DOI: 10.1016/j.bmcl.2015.02.035

Abstact

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.

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Primary Citation of related structures
4XYC