##gff-version 3 O27270 UniProtKB Propeptide 1 9 . . . ID=PRO_0000026665;Note=Removed in mature form%3B by autocatalysis;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113 O27270 UniProtKB Chain 10 210 . . . ID=PRO_0000026666;Note=Proteasome subunit beta O27270 UniProtKB Active site 10 10 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113