An Episulfide Cation (Thiiranium Ring) Trapped in the Active Site of HAV 3C Proteinase Inactivated by Peptide-based Ketone Inhibitors
Keywords: HAV, hepatitis A virus; FMDV, foot-and-mouth disease virus; TGEV, transmissible gastroenteritis coronavirus; SARS, severe acute respiratory syndrome; BBL, carboxylbenzyloxyl-L-serine-β-lactone; CMK, chloromethylketone; FMK, fluoromethylketone; Ac, acetyl;