>1yx6_A mol:protein length:132 26S proteasome non-ATPase regulatory subunit 4 MGHHHHHHHHHHSSGHIEGRHMLGLGASDFEFGVDPSADPELALALRVSMEEQRQRQEE EARRAAAASAAEAGIATTGTEDSDDALLKMTISQQEFGRTGLPDLSSMTEEEQIAYAMQ MSLQGAEFGQAESA >1yx6_B mol:protein length:98 Ubiquitin MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDY NIQKESTLHLVLRLRGGRDPNSSSVDKLAAALEHHHHHH >1yx6_B mol:protein length:98 Ubiquitin MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDY NIQKESTLHLVLRLRGGRDPNSSSVDKLAAALEHHHHHH