Screening of beta 1-and beta 2-Adrenergic Receptor Modulators through Advanced Pharmacoinformatics and Machine Learning Approaches
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES(2021)
摘要
Cardiovascular diseases (CDs) are a major concern in the human race and one of the leading causes of death worldwide. beta-Adrenergic receptors (beta 1-AR and beta 2-AR) play a crucial role in the overall regulation of cardiac function. In the present study, structure-based virtual screening, machine learning (ML), and a ligand-based similarity search were conducted for the PubChem database against both beta 1- and beta 2-AR. Initially, all docked molecules were screened using the threshold binding energy value. Molecules with a better binding affinity were further used for segregation as active and inactive through ML. The pharmacokinetic assessment was carried out on molecules retained in the above step. Further, similarity searching of the ChEMBL and DrugBank databases was performed. From detailed analysis of the above data, four compounds for each of beta 1- and beta 2-AR were found to be promising in nature. A number of critical ligand-binding amino acids formed potential hydrogen bonds and hydrophobic interactions. Finally, a molecular dynamics (MD) simulation study of each molecule bound with the respective target was performed. A number of parameters obtained from the MD simulation trajectories were calculated and substantiated the stability between the protein-ligand complex. Hence, it can be postulated that the final molecules might be crucial for CDs subjected to experimental validation.
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关键词
cardiovascular diseases,beta-adrenergic receptors,virtual screening,machine learning,similarity search,MD simulation
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