Official Full Name
proteasome (prosome, macropain) subunit, alpha type, 4
The proteasome is a multicatalytic proteinase complex with a highly ordered ring-shaped 20S core structure. The core structure is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. This gene encodes a member of the peptidase T1A family, that is a 20S core alpha subunit. Three alternatively spliced transcript variants encoding different isoforms have been found for this gene.
PSMA4; proteasome (prosome, macropain) subunit, alpha type, 4; proteasome subunit alpha type-4; HC9; HsT17706; Macropain subunit C9; MGC111191; MGC12467; MGC24813; Multicatalytic endopeptidase complex subunit C9; Proteasome (prosome macropain) subunit alpha type 4; Proteasome alpha 4 subunit; Proteasome component C9; Proteasome subunit alpha type 4; Proteasome subunit HC9; Proteasome subunit L; PSA4_HUMAN; PSC9; PSMA 4; OTTHUMP00000185020; zgc:56176; wu:fe05d10