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Description for Protein PSME2

proteasome (prosome, macropain) activator subunit 2 (PA28 beta)
2 total interacting proteins; 2 platelet interacting proteins
Icon Book Platelet Evidence (proteome studies/others : 4/0)
(platelet: 3; secretome: 2)
Summary:
The 26S proteasome is a multicatalytic proteinase complex with a highly ordered structure composed of 2 complexes, a 20S core and a 19S regulator. The 20S core 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. The 19S regulator is composed of a base, which contains 6 ATPase subunits and 2 non-ATPase subunits, and a lid, which contains up to 10 non-ATPase 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. The immunoproteasome contains an alternate regulator, referred to as the 11S regulator or PA28, that replaces the 19S regulator. Three subunits (alpha, beta and gamma) of the 11S regulator have been identified. This gene encodes the beta subunit of the 11S regulator, one of the two 11S subunits that is induced by gamma-interferon. Three beta and three alpha subunits combine to form a heterohexameric ring. Six pseudogenes have been identified on chromosomes 4, 5, 8, 10 and 13. [provided by RefSeq] (PubMed Links)
Domains and Motifs:
None Available
Gene Ontology:
Gene Ontology Annotations
KEGG - Enzyme ID(s):
None Available
KEGG - Orthology:
K06697
KEGG - Pathway(s):
hsa03050; hsa04612
(The yellow boxes represents platelet proteins)
Nomenclature / Alternative Names:
Proteasome activator 28 beta subunit; PA28 beta; PA28b; Activator of multicatalytic protease subunit 2; 11S regulator complex beta subunit; REG beta; MCP activator 31kD subunit
Approved Symbol:
PSME2
(De-) Phosphorylations:
Total (de-) phosphorylation sites: 3
Human (de-) phosphorylation sites: 3; No platelet phosphorylation sites
Phosphorylation Targets:
Total phosphorylation targets: 0
Human phosphorylation targets: 0;Predicted platelet targets: 0
Protein Characteristics:
Isoform-specific Information
Icon DrugsAssociated Drugs (DrugBank Accession):

None Available

Associated Genetic Diseases:

None Available
Predicted Transmembrane Domains:
  • Isoform 1 : 0
    • Additional Identifiers:

    HPRD: 03697 Entrez Gene ID: 5721 OMIM ID: 602161 Swissprot Accession: Q9UL46; Q86SZ7;