Tag: E3 ubiquitin ligase

E3 ubiquitin ligases are key regulators of protein ubiquitination and cellular protein homeostasis. They provide substrate specificity within the ubiquitin system and regulate protein degradation, cell-cycle progression, DNA repair, immune signalling, apoptosis, and other essential cellular processes.

Protein degradation is a vital cellular process that removes damaged or unnecessary proteins to maintain homeostasis. This article explains the ubiquitin–proteasome system, autophagy, and their roles in cellular regulation and disease.