Is the Rigidity of SARS-CoV-2 Spike Receptor-Binding Motif the Hallmark for Its Enhanced Infectivity? An Answer from All-Atoms Simulations

The latest outbreak of a new pathogenic coronavirus (SARS-CoV-2) is provoking a global health, economic and societal crisis. All-atom simulations enabled us to uncover the key molecular traits underlying the high affinity of SARS-CoV-2 spike glycoprotein towards its human receptor, providing a rationale to its high infectivity. Harnessing this knowledge can boost developing effective medical countermeasures to fight the current global pandemic.