PSMB8 GI:4758970 proteasome beta 8 subunit isoform E1 proprotein 1 mligtptprd ttpsswltss llveaapldd ttlptpvssg cpglepteff 50 51 qslggdgern vqiemahgtt tlafkfqhgv iaavdsrasa gsyisalrvn 100 101 kvieinpyll gtmsgcaadc qywerllake crlyylrnge risvsaaskl 150 151 lsnmmcqyrg mglsmgsmic gwdkkgpgly yvdehgtrls gnmfstgsgn 200 201 tyaygvmdsg yrpnlspeea ydlgrraiay athrdsysgg vvnmyhmked 250 251 gwvkvestdv sdllhqyrea nq