##gff-version 3 Q9UXF3 UniProtKB Propeptide 1 14 . . . ID=PRO_0000026673;Note=Removed in mature form%3B by autocatalysis;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113 Q9UXF3 UniProtKB Chain 15 208 . . . ID=PRO_0000026674;Note=Proteasome subunit beta 2 Q9UXF3 UniProtKB Active site 15 15 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113