PROTEASOME SUBUNIT BETA TYPE 5 PRECURSOR (EC 3.4.25.1) (PROTEASOME EPSILON CHAIN) (MACROPAIN EPSILON CHAIN) (MULTICATALYTIC ENDOPEPTIDASE COMPLEX EPSILON CHAIN) (PROTEASOME SUBUNIT X) (PROTEASOME CHAIN 6) (PROTEASOME SUBUNIT MB1). [Source:SWISSPROT;Acc:P28074]