>sp|D2Q4H4|PSB_KRIFD Proteasome subunit beta OS=Kribbella flavida GN=prcB MTFDASGRLPEAFLTPGGSSFMDFLAGHAPDLLPGRRSLGTGDLSKDVPHGTTIVAATFD GGVVMAGDRRATMGNIIAQRDIEKVFPADEYSCVGIAGSAGLAIEMVRLFQVELEHYEKL EGTTLSLDGKANRLSALIRGNLAMAMQGLAVVPLFAGYDHDISGGRIFSYDPTGGRYEEQ AFHSVGSGSLFARGSLKKLYRESMSAAECVTATIQALYDAADDDSATGGPDMARRIFPVI GVVTADGYQRMPEAEVGEIVDSVVGARLQRPDGPAAPLS