Agricultural Science Digest

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Agricultural Science Digest, volume 38 issue 3 (september 2018) : 209-212

Antioxidant, anticancer and molecular docking activity of tulsi plant

C.M. Noorjahan, T. Saranya
Cite article:- Noorjahan C.M., Saranya T. (2018). Antioxidant, anticancer and molecular docking activity of tulsi plant. Agricultural Science Digest. 38(3): 209-212. doi: 10.18805/ag.D-4793.
An investigation was carried out to study the antioxidant, anticancer and docking activities of medicinal plant, Tulsi – Ocimum sanctum. The results of antioxidant activity of Tulsi leaves extract showed that tulsi leaves has good free radical scavenging ability and IC50 value was found to be 54.23% at 500 µg/ml. The results of anticancer activity of Ocimum santum on normal VERO cell and MCF-7 cell line has showed good anticancer activity having the IC50 concentration at 51.1 ì|g/ml against MCF-7 cell lines – Human Breast cancer cell line thereby indicating that the percentage of cell viability increases with the increased concentration of Ocimum santum (Tulsi) whereas 24.4% cell viability was recorded in the normal VERO cell line. DNA laddering assay was performed on agarose gel electrophoresis. A clear fragmented DNA ladders were observed in tulsi treated MCF-7– Human Breast cancer cell lines.  But the untreated normal VERO cell lines did not show any DNA fragmentation. Thereby confirms that Ocimum sanctum induced cell death on breast cancer cell line MCF-7 cancerous cell through apoptosis. Molecular docking was carried out (AutoDock tools), Docking simulations was performed using Lamarckian genetic algorithm of Solis and Wests local search method. Interaction between HDAC6 and Cirsilileon possessing binding energy showed +15.91kcal for interaction studies. It was found that most of the hydrogen bonding is with the residues TYR 76, TRP 35, SER 67, TYR 81, GLU 33, TYR 48, ILE 69 and MET 53 present in the binding pocket. The ligand was docked with the target protein, and the best docking poses were identified and the binding poses of the cirsilieon was shown. This act as the best docking poses shows how the ligand molecule fits into the binding region of the target protein. 

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