##gff-version 3 B6YSW2 UniProtKB Propeptide 1 7 . . . ID=PRO_0000397468;Note=Removed in mature form%3B by autocatalysis;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113 B6YSW2 UniProtKB Chain 8 203 . . . ID=PRO_0000397469;Note=Proteasome subunit beta 1 B6YSW2 UniProtKB Active site 8 8 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113