##gff-version 3 C6A3R1 UniProtKB Propeptide 1 6 . . . ID=PRO_0000397474;Note=Removed in mature form%3B by autocatalysis;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113 C6A3R1 UniProtKB Chain 7 199 . . . ID=PRO_0000397475;Note=Proteasome subunit beta 2 C6A3R1 UniProtKB Active site 7 7 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_02113