>1p9c_A mol:protein length:45 26S proteasome non-ATPase regulatory subunit 4 MTISQQEFGRTGLPDLSSMTEEEQIAYAMQMSLQGAEFGQAESAD >1p9c_A mol:protein length:45 26S proteasome non-ATPase regulatory subunit 4 MTISQQEFGRTGLPDLSSMTEEEQIAYAMQMSLQGAEFGQAESAD