The small ubiquitin-related modifier (SUMOylation) system is a conserved. reversible. post-translational protein modification pathway covalently attached to the lysine residues of proteins in eukaryotic cells. and SUMOylation is catalyzed by SUMO-specific activating enzyme (E1). https://www.ivoryjinelle.com/limited-price-Florida-State-FSU-Seminoles-Maroon-iPhone-13-Pro-Max-Skin-p44288-hot-buy/