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. [provided by RefSeq, Jul 2008]

Description

Proteasome 20S subunit beta 1

Tissue specificity

Low tissue specificity

Subcell location

Nucleoplasm

Predicted location

Intracellular

Protein family

Enzymes
FDA approved drug targets
Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Plasma proteins
Predicted intracellular proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)

Chromosome

6 (170535120 - 170553307)

Ensembl ID

ENSG00000008018  (ver. 103.38)

Orthologs

Mouse Psmb1: ENSMUSG00000014769

UniProt

P20618

neXtProt

NX_P20618

Human splice variants
Mouse splice variants

Protein structure