Aliases for PSMD1 Gene
External Ids for PSMD1 Gene
Previous GeneCards Identifiers for PSMD1 Gene
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. This gene encodes the largest non-ATPase subunit of the 19S regulator lid, which is responsible for substrate recognition and binding. There is evidence that this proteasome and its subunits interact with viral proteins, including those of coronaviruses. Alternatively spliced transcript variants have been found for this gene.[provided by RefSeq, Aug 2020]
GeneCards Summary for PSMD1 Gene
PSMD1 (Proteasome 26S Subunit, Non-ATPase 1) is a Protein Coding gene. Diseases associated with PSMD1 include Cystic Fibrosis and Bardet-Biedl Syndrome. Among its related pathways are Downstream signaling events of B Cell Receptor (BCR) and CDK-mediated phosphorylation and removal of Cdc6. Gene Ontology (GO) annotations related to this gene include binding and enzyme regulator activity. An important paralog of this gene is PSMD2.
UniProtKB/Swiss-Prot Summary for PSMD1 Gene
Component of the 26S proteasome, a multiprotein complex involved in the ATP-dependent degradation of ubiquitinated proteins. This complex plays a key role in the maintenance of protein homeostasis by removing misfolded or damaged proteins, which could impair cellular functions, and by removing proteins whose functions are no longer required. Therefore, the proteasome participates in numerous cellular processes, including cell cycle progression, apoptosis, or DNA damage repair.