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PSMB4
Anti-PSMB4 Recombinant Antibody Products
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For Research Use Only. Not For Clinical Use.
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.
Protein class
Disease related genes, Enzymes, Plasma proteins, Potential drug targets
Predicted location
Intracellular
Single cell type specificity
Low cell type specificity
Immune cell specificity
Low immune cell specificity
Cell line specificity
Low cell line specificity
Interaction
The 26S proteasome consists of a 20S proteasome core and two 19S regulatory subunits (PubMed:25599644, 26133119, 27342858, 27428775, 27493187, 9344905, 34711951). The 20S proteasome core is a barrel-shaped complex made of 28 subunits that are arranged in four stacked rings (PubMed:25599644, 26133119, 27342858, 27428775, 27493187, 9344905, 34711951). The two outer rings are each formed by seven alpha subunits, and the two inner rings are formed by seven beta subunits (PubMed:25599644, 26133119, 27342858, 27428775, 27493187, 9344905, 34711951). The proteolytic activity is exerted by three beta-subunits PSMB5, PSMB6 and PSMB7 (PubMed:25599644, 26133119, 27342858, 27428775, 27493187, 9344905, 34711951). Forms a ternary complex with SMAD1 and OAZ1 before PSMB4 is incorporated into the 20S proteasome (PubMed:11571290, 12097147). Interacts with PRPF19 (PubMed:15660529). (Microbial infection) Interacts with HTLV-1 Tax protein. (Microbial infection) Interacts with HIV-1 Nef and Tat proteins.
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