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Ubiquitin (MIM 191339) is a highly conserved 76-amino acid protein involved in regulation of intracellular protein breakdown, cell cycle regulation, and stress response. Ubiquitin is released from degraded proteins by disassembly of the polyubiquitin chains, which is mediated by ubiquitin-specific proteases (USPs), such as USP25 (Valero et al., 1999 [PubMed 10644437]).[supplied by OMIM, Mar 2008]
Enzymes ENZYME proteins Hydrolases Peptidases Cysteine-type peptidases Predicted intracellular proteins Plasma proteins Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)