ACT_SITE 87; /note="Nucleophile; for GATase activity"; /evidence="ECO:0000255|PROSITE-ProRule:PRU00605"; ACT_SITE 175; /note="For GATase activity"; /evidence="ECO:0000255|PROSITE-ProRule:PRU00605"; ACT_SITE 177; /note="For GATase activity"; /evidence="ECO:0000255|PROSITE-ProRule:PRU00605"