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  • Title: Mycobacterium tuberculosis lysine-ɛ-aminotransferase a potential target in dormancy: Benzothiazole based inhibitors.
    Author: Reshma RS, Jeankumar VU, Kapoor N, Saxena S, Bobesh KA, Vachaspathy AR, Kolattukudy PE, Sriram D.
    Journal: Bioorg Med Chem; 2017 May 15; 25(10):2761-2771. PubMed ID: 28389113.
    Abstract:
    MTB lysine-ɛ-aminotransferase (LAT) was found to play a crucial role in persistence and antibiotic tolerance. LAT serves as a potential target in the management of latent tuberculosis. In present work we attempted to derivatize the benzothiazole lead identified through high throughput virtual screening of Birla Institute of Technology and Science in house database. For Structure activity relationship purpose 22 derivatives were synthesized and characterized. Among synthesized compounds, eight compounds were found to be more efficacious in terms of LAT inhibition when compared to lead compound (IC50 10.38±1.21µM). Compound 22 exhibits bactericidal action against nutrient starved Mycobacterium tuberculosis (MTB). It also exhibits significant activity in nutrient starvation model (2.9log folds) and biofilm model (2.3log folds).
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