ACT_SITE 994; /note="For picornain 3C-like protease activity"; /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"; ACT_SITE 1054; /note="For picornain 3C-like protease activity"; /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"; ACT_SITE 1152; /note="For picornain 3C-like protease activity"; /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"