##gff-version 3 O50110 UniProtKB Propeptide 1 10 . . . ID=PRO_0000026671;Note=Removed in mature form%3B by autocatalysis;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113 O50110 UniProtKB Chain 11 207 . . . ID=PRO_0000026672;Note=Proteasome subunit beta 2 O50110 UniProtKB Active site 11 11 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113