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PSMB1
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. This gene is tightly linked to the TBP (TATA-binding protein) gene in human and in mouse, and is transcribed in the opposite orientation in both species.
Protein class
Enzymes, FDA approved drug targets, Plasma proteins
Predicted location
Intracellular
Single cell type specificity
Cell type enhanced (Syncytiotrophoblasts)
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, 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, 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, 34711951). The proteolytic activity is exerted by three beta-subunits PSMB5, PSMB6 and PSMB7 (PubMed:25599644, 26133119, 27342858, 27428775, 27493187, 34711951). Interacts with SERPINB2 (PubMed:14732874). Interacts with RFPL4A (By similarity). (Microbial infection) Interacts with HIV-1 protein Tat.
More Types Infomation
- PE-B*27:05/Human PSMB1 (RRFFPYYVY) MHC Tetramer (MHC-LC4418)
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- Class: Class I
- Antigen: PSMB1
- Antigen Species: Human
- Peptide: RRFFPYYVY
- Conjugate: PE
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- Derivation: Mouse
- Species Reactivity: Human
- Type: Mouse IgG1
- Application: WB, IP, IF, IHC, ELISA
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For Research Use Only. Not For Clinical Use.