Computational Approaches to Develop Isoquinoline Based Antibiotics through DNA Gyrase Inhibition Mechanisms Unveiled through Antibacterial Evaluation and Molecular Docking.
Mol Inform
; 37(12): e1800048, 2018 12.
Article
en En
| MEDLINE
| ID: mdl-30051592
Developing a new antibacterial drug by using (Z/E)-4-(4-substituted-benzylidene)-2-isoquinoline-1,3(2H,4H)-diones (5a-h) via DNA gyrase inhibition mechanism is the main aim of this study. DNA gyrase inhibition assay was executed to confirm the DNA gyrase inhibition potentials of 5a-h. DNA gyrase inhibitory potentials were further validated through molecular docking. Docking study was also intended to get more insight into the binding mode of 5a-h into the active site of DNA gyrase A. Agar well diffusion method antimicrobial activity on Gram-ve bacteria Escherichia coli (MTCC 443), Pseudomonas aeruginosa (MTCC 424), and Gram+ve bacteria (Staphylococcus aureus (MTCC 96) and Streptococcus pyogenes (MTCC 442) was evaluated. Excellent DNA gyrase inhibition was exhibited by the compound 5c, IC50 0.55±0.12â
µM; 5d, IC50 0.65±0.075â
µg/mL; 5e, IC50 0.45±0.035â
µM; 5f, IC50 0.58±0.025â
µM; 5h, IC50 0.25±0.015â
µM while Clorobiocin (standard) showed IC50 0.5±0.05â
µM. Apart from all the inâ
vitro studies, a plausible mechanism of DNA gyrase inhibition was also proposed through the in silico validations that are including molecular docking, predicted SAR, functional group availability, pharmacokinetic, and ADMET properties. These predictions are well supported to confirm the druggability possibility of the most potent compounds among (Z/E)-4-(4-substituted-benzylidene)-2-isoquinoline-1,3(2H,4H) -diones (5a-h).
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Proteínas Bacterianas
/
Girasa de ADN
/
Descubrimiento de Drogas
/
Inhibidores de Topoisomerasa II
/
Simulación del Acoplamiento Molecular
/
Antibacterianos
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Mol Inform
Año:
2018
Tipo del documento:
Article
País de afiliación:
India
Pais de publicación:
Alemania