ACE2 Function: Renin-Angiotensin System The attachment and entry of coronaviruses is dependent on spike protein-receptor specificity. Angiotensin Converting Enzyme 2 (ACE2)—a transmembrane protein found on the plasma membrane of cells in lungs, vascular endothelium, kidneys, etc—is the receptor for SARS-COV2. ACE2 is a key component of the Renin-Angiotensin System (RAS)…