Psme1 - proteasome (prosome, macropain) activator subunit 1 (PA28 alpha)

Contributes to endopeptidase activator activity. Acts upstream of or within antigen processing and presentation of exogenous antigen. Predicted to be part of proteasome activator complex. Predicted to be active in cytoplasm and nucleoplasm. Is expressed in several structures, including adipose tissue; alimentary system; eye; genitourinary system; and hemolymphoid system gland. Orthologous to human PSME1 (proteasome activator subunit 1). [provided by Alliance of Genome Resources, Apr 2022]