“…Hasan et al compared the PCPs of protein ORF8 from SARS-CoV-2, pangolin-CoV, and bat-RaTG13-CoV and reported that some PCPs of SARS-CoV-2 ORF8 showed higher correlation with bat-RaTG13-CoV and less correlation with pangolin-CoV (Hassan et al, 2021). We have previously reported some informative PCPs, including normalized van der Waals volume, delta G values, normalized frequencies of turn in a/b class, normalized positional residues frequency at helix termini N 00 , and relative mutability, which were potential predictors for differentiating human and non-human host CoVs (Yerukala Sathipati and Ho, 2021). These changes in the properties of S protein is of particular value for the development and refinement of artificial intelligence (AI) and bioinformatics-based approaches to analyze and predict the emergence of SARS-CoV-2 variants, identify alterations in treatment response, and highlight areas of concern for increased transmissibility (Cave et al, 2021;Arora et al, 2020;Auwul et al, 2021;Brierley and Fowler, 2021).…”