These receptors include ACE2, the one most known to be used by the virus responsible for COVID-19. The team then added parts that matched the spike protein's parts called "virus-binding domains." ...
In Class I ORs, a conserved arginine residue in one of the seven membrane-spanning α-helices of the receptor proteins (transmembrane helix 6; TM6) is poised to make contacts with the carboxylic ...