##gff-version 3 Q74MP5 UniProtKB Propeptide 1 1 . . . ID=PRO_0000397380;Note=Removed in mature form%3B by autocatalysis;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113 Q74MP5 UniProtKB Chain 2 196 . . . ID=PRO_0000397381;Note=Proteasome subunit beta Q74MP5 UniProtKB Active site 2 2 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113