Title:Molecular Docking and Simulation Binding Analysis of Boeravinone B
with Caspase-3 and EGFR of Hepatocellular Carcinoma
Volume: 20
Issue: 2
Author(s): Praveen Kumar Posa Krishnamoorthy*, Ashwini Devi Balaraman, Annadurai Priyadharshini, Dharani Abirama Sundari Shanmugam, Sivanandham Muthukumaran, Amrutha Kesavamurthy and Prasanna Diddige Revanasiddappa
Affiliation:
- Department of Biotechnology, Sri Venkateswara College of Engineering, Sriperumbudur Tk - 602117, Tamil Nadu,
India
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai - 600036, Tamil Nadu, India
Keywords:
Boeravinone B, Boerhaavia diffusa Linn, hepatocellular carcinoma, sorafenib, EGFR, Caspase-3.
Abstract:
Objective: Hepatocellular carcinoma (HCC) is a widely occurring cancer ranking second in
humans, with an incidence rate of approximately 1.6% per year in India. Experimental analysis of the
Boeravinones or the Rotenoids classification of compounds present in the roots of the Boerhaavia diffusa
Linn plant has shown a wide range of anti-cancer activity against liver hepatoblastoma.
Methods: Boeravinone B (BB) was screened from widely available Boeravinone A-E compounds based
on a maximum drug-likeness score using Lipinski’s rule Five. BB was checked for anti-HCC activity by
binding with the five receptors of VEGF, EGF, BCl2, Caspase-3 and Caspase-9 when compared with
Sorafenib through molecular docking. GROMACS was used for simulating molecular dynamics.
Results: BB has shown a negative maximum internal energy score of -8.04, -8.42, -6.66, -8.33 and -7.74
Kcal/mol when compared to Sorafenib’s internal energy score of -6.55, -7.12, -4.05, -5.48 and -6.12
Kcal/mol for VEGFR, EGFR, BCl2, Caspase-3 and Caspase-9 respectively. Simulation using GROMACS
has revealed that RMSD results BB forms a more stable complex with the Caspase-3 and EGFR after 19s
and 15s of simulation time. RMSF analysis has characterized local changes on 170-190 residues and 860-
900 residues in C-alpha atoms of BB-Caspase-3 and BB-EGFR complexes revealed protein flexibility.
Conclusion: MMPBSA score of BB docked Caspase-3 and EGFR complexes were found to be -62.178
and -42.84 KJ/mol.