TEV Protease (Tobacco etch virus protease )is a recombinant protease derived from the Tobacco etch virus (TEV) Nla, which is used to remove the affinity labeling of the purified fusion protein.TEV Protease has a strong site specificity, which can identify the seven amino acid sequences of EXXYXQ (G/S). The most common is ENLYFQG, the cutting site is between glutamine and glycine or serine.The enzyme is active over a wide range of pH 5.5-8.5 and 4-30 ℃, so that the choice of reaction conditions can be modified depending on the protein of interest. The TEV Protease produced by GeneUniversal. is a recombinant protease from E. coli expression after affinity purification. TEV Protease contains polypeptide label, which can be removed by affinity chromatography after the enzymatic reaction has been completed.