The UBE2C protein is a key ubiquitin-proteasome system component that acts as an E2 ubiquitin-conjugating enzyme and is the core of the covalent linkage of ubiquitin to target proteins. In vitro, UBE2C expertly promotes “Lys-11” and “Lys-48” linked polyubiquitination, demonstrating the versatility of ubiquitin chain formation. UBE2C Protein, Human (sf9, His, Strep) is the recombinant human-derived UBE2C protein, expressed by sf9 insect cells , with N-Strep, N-8*His labeled tag.