800-end. Description: Recombinant swine EK (800-end) was expressed in yeast cells using an N-terminal His tag.Scientific Background: Enterokinase (EK) is a member of the trypsin family of serine proteases, which cleaves proteins following the Lys at the Asp-Asp-Asp-Asp-Lys recognition sequence. In the stomach, EK converts trypsinogen into trypsin. EK has high specificity and high hydrolytic efficiency, making it a widely used biochemical tool for cleaving recombinant fusion proteins. EK can