Recombinant Enterokinase

Recombinant Enterokinase (rEK) is a highly purified preparation of the catalytic subunit of bovine enterokinase, a serine protease which recognizes the identical cleavage site as the native enzyme (AspAspAspAspLys↓) and has similar enzymatic activity. This enzyme is produced in E. coli and purified to yield the highest activity available, and is qualified for specific cleavage of appropriate fusion proteins. Supplied as a solution in 50% glycerol. EC 3.4.21.9, M.W. 26,300.

•50 URecombinant Enterokinase

•2 ml1X rEK Dilution/Storage Buffer

•1 ml10X rEK Cleavage Buffer

•10 µgCleavage Control Protein

Toxicity: Multiple Toxicity Values, refer to MSDS (O)

One unit is defined as the amount of enzyme that will cleave 50 µg of fusion protein in 16 hours at 23°C, in a buffer containing 20 mM Tris-HCl pH 7.4, 50 mM NaCl, 2 mM CaCl₂.

Collins-Racie, L.A. et al. 1995. Bio/Technology 13, 982.

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