>sp|Q82JE3|PSB1_STRAW Proteasome subunit beta 1 OS=Streptomyces avermitilis GN=prcB1 MAQRDTGGRLGAEFFTPGDSSFTAFLAAHRPALLSTRGLLPDGVRAAPDRVPHGTTVLAL AYRDGVLIAGDRRATMGNLIAQRDLEKVHPADDYTAVAFAGTVGLALDMVKLYQVELAHF EKVEGVPMTLRAKATRLAGMIRQNLGQAMQGLAVVPLLVGYDLAARAGEHGRIFSFDVTG GPYEKTDFHAEGSGSPYARGALKKLFHPGMSRREAALAALQALYDAADDDSATGGPDISR RIFPVVSVITEDGFERLPESETEDLSREMVEQRHTRPDGPTAAM