Machine Learning-based Analysis of Electronic Properties as Predictors of Anticholinesterase Activity in Chalcone Derivatives ...

• Main Authors: Buzelli, Thiago, Ipaves, Bruno, Almeida, Wanda Pereira, Galvao, Douglas Soares, Autreto, Pedro Alves da Silva
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: arXiv 2023
• Subjects: Computational Physics physics.comp-ph; Applied Physics physics.app-ph; Data Analysis, Statistics and Probability physics.data-an; FOS Physical sciences; Orca
• Online Access: https://dx.doi.org/10.48550/arxiv.2309.07312; https://arxiv.org/abs/2309.07312

In this study, we investigated the correlation between the electronic properties of anticholinesterase compounds and their biological activity. While the methodology of such correlation is well-established and has been effectively utilized in previous studies, we employed a more sophisticated approach: machine learning. Initially, we focused on a set of $22$ molecules sharing a common chalcone skeleton and categorized them into two groups based on their IC50 indices: active and inactive. Utilizing the open-source software Orca, we conducted calculations to determine the geometries and electronic structures of these molecules. Over a hundred parameters were collected from these calculations, serving as the foundation for the features used in machine learning. These parameters included the Mulliken and Lowdin electronic populations of each atom within the skeleton, molecular orbital energies, and Mayer's free valences. Through our analysis, we developed numerous models and identified several successful ... : to be submitted to Journal of Chemical Information and Modeling ...