The 20S as a stand-alone proteasome in cells can degrade the ubiquitin tag.
Sahu I, Mali SM, Sulkshane P, Xu C, Rozenberg A, Morag R, Sahoo MP, Singh SK, Ding Z, Wang Y, Day S, Cong Y, Kleifeld O, Brik A, Glickman MH.
Sahu I, et al. Among authors: cong y.
Nat Commun. 2021 Oct 26;12(1):6173. doi: 10.1038/s41467-021-26427-0.
Nat Commun. 2021.
PMID: 34702852
Free PMC article.