PSMB1 GI:4506193 proteasome beta 1 subunit 1 mlsstamysa pgrdlgmeph raagplqlrf spyvfnggti laiagedfai 50 51 vasdtrlseg fsihtrdspk cykltdktvi gcsgfhgdcl tltkiiearl 100 101 kmykhsnnka mttgaiaaml stilysrrff pyyvyniigg ldeegkgavy 150 151 sfdpvgsyqr dsfkaggsas amlqplldnq vgfknmqnve hvplsldram 200 201 rlvkdvfisa aerdvytgda lricivtkeg ireetvslrk d