Quantum chemical calculation, topological analysis, biological evaluation and molecular docking of allo‐ocimenol against breast cancer

Abstract

AbstractThe main aim of this study is to identify the structural stability of allo‐ocimenol and its molecular reactivity against breast cancer‐associated proteins to confirm its anti‐cancer capability using density function theory and molecular docking analysis. The structural optimization was carried out via the DFT/B3LYP technique with a 6‐311++G (d,p) basis set. The molecular geometry and vibrational assignments of the Allo‐Ocimenol molecule were analyzed through density functional theory (DFT). Through optimized molecular structure, the vibrational frequencies (FT‐IR and FT‐Raman) were assigned and related with experimentally observed vibrational frequencies and the UV spectrum was computed and experimentally confirmed. The allo‐ocimenol's reactive activity was further analyzed through a computed molecular electrostatic potential surface. Utilizing the HOMO‐LUMO energies and molecular electrostatic potential energy gap, the reactivity and molecular stability of the allo‐ocimenol molecule was calculated. Mulliken and natural population analyses were used to determine the charge distribution across the allo‐ocimenol atoms. The natural bond orbitals were used to demonstrate the bioactivity of the titled molecule. RDG evaluation was used to examine the weak interactions of the allo‐ocimenol molecule. ELF and LOL analyses were utilized to investigate the topology of the allo‐ocimenol molecule. Thermodynamic evaluation has been utilized to acquire values and asses the thermodynamic parameters that reveal the thermal stability of the title molecule. Allo‐Ocimenol's anti‐microbial activity was assessed through an in‐vitro disc diffusion method, and its tumor inhibitory and pharmacokinetic properties were evaluated through an in‐silico approach using molecular docking and ADMET investigation. Zones of clearance were seen in anti‐microbial analyses at various concentrations, and the breast cancer target protein NAMPT established the greatest binding potential, with a docking value of −7.4 Kcal mol−1.