##gff-version 3 P00769 UniProtKB Chain 1 218 . . . ID=PRO_0000088676;Note=Chymotrypsin-2 P00769 UniProtKB Domain 1 218 . . . Note=Peptidase S1;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00274 P00769 UniProtKB Active site 39 39 . . . Note=Charge relay system P00769 UniProtKB Active site 84 84 . . . Note=Charge relay system P00769 UniProtKB Active site 175 175 . . . Note=Charge relay system P00769 UniProtKB Disulfide bond 25 40 . . . . P00769 UniProtKB Disulfide bond 148 161 . . . . P00769 UniProtKB Disulfide bond 171 195 . . . .