ACT_SITE 1003; /note="For picornain 3C-like protease activity"; /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"; ACT_SITE 1063; /note="For picornain 3C-like protease activity"; /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"; ACT_SITE 1162; /note="For picornain 3C-like protease activity"; /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"