##gff-version 3 D1A2S9 UniProtKB Propeptide 1 56 . . . ID=PRO_0000397596;Note=Removed in mature form%3B by autocatalysis;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113 D1A2S9 UniProtKB Chain 57 284 . . . ID=PRO_0000397597;Note=Proteasome subunit beta 1 D1A2S9 UniProtKB Active site 57 57 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113