{"symbol":"PSMA1","synonyms":["PROS30","HEL-S-275","NU"],"name":"proteasome (prosome, macropain) subunit, alpha type, 1","description":"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. Alternative splicing results in multiple transcript variants encoding distinct isoforms.[provided by RefSeq, Jan 2009]","ncbiEntrezGeneId":5682,"ncbiEntrezGeneUrl":"http://www.ncbi.nlm.nih.gov/gene/5682","proteins":[{"symbol":"PSA1_HUMAN","href":"/api/1.0/protein/PSA1_HUMAN"}],"hgncRootFamilies":[{"name":"Proteasome (prosome, macropain) subunits (PSM)","href":"/api/1.0/gene_family/Proteasome+%28prosome%2C+macropain%29+subunits+%28PSM%29"}]}