>sp|Q9NHC6|PSB2_TRYBB Proteasome subunit beta type-2 OS=Trypanosoma brucei brucei GN=PSB4 MAETTIGFRCQDFVLVAAAGLNAFYYIKITDTEDKITELDSHKVVACAGENGPRTHFVEY VKCNMALKKMREHGRMISTHATASFMRNTLAGALRSRDGLYPVNCLLAGFDVPASAEDDV ATGAHLYYLDYLGTLQEVPYGCHGYGAPFVTAMLDRMWRPNLTAQEGVELMQKCCDEVNK RVVVSNNTFICKAVPKDGVERVQSVS