##gff-version 3 A6USJ3 UniProtKB Propeptide 1 14 . . . ID=PRO_0000397354;Note=Removed in mature form%3B by autocatalysis;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113 A6USJ3 UniProtKB Chain 15 219 . . . ID=PRO_0000397355;Note=Proteasome subunit beta A6USJ3 UniProtKB Active site 15 15 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113