##gff-version 3 B1YDJ0 UniProtKB Propeptide 1 9 . . . ID=PRO_0000397484;Note=Removed in mature form%3B by autocatalysis;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113 B1YDJ0 UniProtKB Chain 10 203 . . . ID=PRO_0000397485;Note=Proteasome subunit beta 2 B1YDJ0 UniProtKB Active site 10 10 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113