– SUMO protease, also known as Ulp, is a highly specific enzyme that removes small ubiquitin-like modifier (SUMO) from recombinant SUMO fusion proteins. Unlike proteases such as enterokinase or TEV, which recognize linear amino acid sequences, SUMO protease recognizes the native tertiary structure of SUMO, allowing precise cleavage without leaving extra residues at the cleavage site. This recombinant SUMO protease is derived from Saccharomyces cerevisiae, expressed in E. coli, and purified to obtain high yields of active enzyme under animal-free conditions. It is well suited for applications in drug and vaccine development, protein manufacturing, and other research uses. A C-terminal 6×His tag is included to enable easy removal of the protease following cleavage via Ni²⁺ affinity purification.