Aliases for PSMB4 Gene
External Ids for PSMB4 Gene
Previous GeneCards Identifiers for PSMB4 Gene
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 proteasome B-type family, also known as the T1B family, that is a 20S core beta subunit. [provided by RefSeq, Jul 2008]
GeneCards Summary for PSMB4 Gene
PSMB4 (Proteasome Subunit Beta 4) is a Protein Coding gene. Among its related pathways are Ubiquitin-Proteasome Dependent Proteolysis and Interleukin-3, 5 and GM-CSF signaling. GO annotations related to this gene include threonine-type endopeptidase activity and lipopolysaccharide binding.
UniProtKB/Swiss-Prot for PSMB4 Gene
The proteasome is a multicatalytic proteinase complex which is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. The proteasome has an ATP-dependent proteolytic activity. Mediates the lipopolysaccharide-induced signal macrophage proteasome (By similarity). SMAD1/OAZ1/PSMB4 complex mediates the degradation of the CREBBP/EP300 repressor SNIP1.