>tr|M9PE80|M9PE80_DROME Proteasome subunit beta OS=Drosophila melanogaster GN=Prosbeta4R2 MAMETILGIKGPDFVMLASDTMQAKSLVFMKDDQSKIHRLSDFNMMATVGDGGDTIQFTD FISKNLHLYKISHGYHLSAKSAAHFTRKTLADYIRTNTRYQVAMLLAGYDAVEGPDLHYI DSYGAAQSINHAGHGWGSMFCGSILQRYWNSKLSQEDAYSLMKKCVLEIQRRLIINQRNF EVYVVDSKGMRKMEAINPGSLNKESISLSW