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2016 / VOL-6,ISSUE-02,APRIL-JUNE 2016

Docking analysis of potent inhibitors of topoisomerase IV as potential antimicrobial agents

By  Sumathy A.*, Palanisamy S., Arathi K.N., Aswathi U.P., Hamna Fathima K.

Research Articles

Page:  1467-1471

Abstract

According to data of the World Health Organization, Tuberculosis (TB) caused by Mycobacterium tuberculosis, is considered to be the most chronic communicable disease in the world especially in Asia and Africa. This situation was made worse by the emergence of multi drug resistant TB (MDR-TB) and is the leading cause of death in HIV-infected adults in developing countries, thus an urgent need exists for the development of new antimycobacterial agents with a unique mechanism of action. Mycobacterium tuberculosis 3LPS, an essential enzyme to pass one double strand of DNA to another there by changing the linking number of DNA is an attractive target for novel anti-tubercolosis agents. A series of Isatin, Thiazole with various acetophenones were computationally designed and energy minimized. The molecular properties were investigated for drug like properties by calculating Lipinski's zero violations of the rule of 5 which indicates good bioavailability. The positive bioactivity score of the derivative were also in agreement with their probability of drug likeness. These compounds were docked using Topoisomerase IV using Argus lab docking software which showed good binding energy for the enzyme, when compared with the binding energies of standard drug isoniazid -5.83kcal/mol.) Among all the designed ligands, the ligand SA and SN showed more binding energy 15values (-8.05 and -8.37Kcal/mol). In future we planned to synthesize these ligand and to screen for their anti TB activity.

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