ACE2 and COVID-19: The angiotensin-convertingenzyme II (ACE2) is a type I transmembranemono-carboxypeptidase that recently reached the headlines for itsrole as a human receptor for the SARS-CoV-2 virus, which is responsiblefor the outbreak of COVID-19.1 More specifically,using the spike (S) glycoprotein, SARS-CoV-2 binds to ACE2 on thesurface of epithelial cells as the first step of the viral replicationstrategy.