>tr|A0A832SEN4|A0A832SEN4_9EURY Proteasome subunit beta OS=Methanosarcina acetivorans GN=psmB MDDDKYLKGTTTVGVVCTDGIVLASEQRATMGHFIASKTAKKVYQIDDLVGMTTAGSVGD AQQLVRLVSVESQLYKMRRNESMTIKGIATLMSNFLNANRYYPMMVQLLIGGVDKNGPAI YSLDAMGGSIEETRISATGSGSPMAYGVLEDQYKEDIAVKEGLDLAIRAIHNAMKRDSAS GENIDVVVITKEAFKRLDPEEVKSRRDSLN