Synonyms:
Lmpc3; MU; PSMA2; 20S Proteasome α2; HC3; Macropain subunit C3; MU antibody Multicatalytic endopeptidase complex subunit C3; PMSA2; Proteasome (prosome macropain) subunit alpha type 2; Proteasome alpha 2 subunit; Proteasome component C3; Proteasome subunit alpha type 2; Proteasome subunit alpha type-2; Proteasome subunit HC3; PSC2; PSC3; PSMA 2; psmA2; PSA2_HUMAN.
Introduction:
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 composedof 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.