proteasome

https://doi.org/10.1351/goldbook.13613
Cytoplasmic and nuclear multiprotein proteolytic complex involved in degradation of excess, damaged, or misfolded proteins.
Note: Cytoplasmic proteasome is important in antigen processing and presentation by major histocompatibility complex (MHC) molecules.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1236 [Terms] [Paper]