Supporting Information Available
The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.jpcb.0c05994.Location of residues picked for mutation; binding free energies of mutants; details of H-bonds for all mutations; RMSD of mutants; loop RMSD of all systems; RMSF plots for all mutants; FELs using first two principal components; porcupine plots for structural fluctuations; DCCM plots for mutants; and binding energy decomposition for T478I and N439K mutants (PDF)

Supplementary Material
jp0c05994_si_001.pdf

The authors declare no competing financial interest.

Acknowledgments
This work was supported by the Intramural Research Program of the National Heart, Lung, and Blood Institute (NHLBI) at the National Institutes of Health (NIH). The authors acknowledge the Biowulf high performance Linux cluster at the NIH for providing computational resources for this project. The authors would like to dedicate this article to the doctors and nurses who sacrificed their time, health, and even their lives to fight COVID-19, particularly those in Iran and the United States. J.B.K. would also like to dedicate this work to family friend Joe Kaplan (Silver Spring, MD) who passed away because of COVID-19 on April 22, 2020.