3ZXR image
Deposition Date 2011-08-15
Release Date 2012-04-04
Last Version Date 2023-12-20
Entry Detail
PDB ID:
3ZXR
Keywords:
Title:
Crystal structure of Mycobacterium Tuberculosis Glutamine Synthetase in complex with tri-substituted imidazole inhibitor (3-(2-tert-butyl- 5-(pyridin-4-yl)-1H-imidazol-4-yl)quinoline) and L-methionine-S- sulfoximine phosphate.
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.15 Å
R-Value Free:
0.24
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
C 2 2 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:GLUTAMINE SYNTHETASE 1
Chain IDs:A, B, C, D, E, F
Chain Length:486
Number of Molecules:6
Biological Source:MYCOBACTERIUM TUBERCULOSIS
Primary Citation

Abstact

Mycobacterium tuberculosis glutamine synthetase (MtGS) is a promising target for antituberculosis drug discovery. In a recent high-throughput screening study we identified several classes of MtGS inhibitors targeting the ATP-binding site. We now explore one of these classes, the 2-tert-butyl-4,5-diarylimidazoles, and present the design, synthesis, and X-ray crystallographic studies leading to the identification of MtGS inhibitors with submicromolar IC(50) values and promising antituberculosis MIC values.

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Primary Citation of related structures