5 IU/μl Unit Definition: One unit is defined as the amount of enzyme needed to cleave 50 μg of fusion protein in 16 hours to 95 % completion at 22 °C in a buffer containing 25 mM Tris-HCl, pH 8.0.
Pureté
> 95 % by SDS-PAGE analyses.
Stérilité
Sterile
niveau d'endotoxine
< 1.0 EU/μg, determined by LAL method.
Ingrédients
100 IU (or 500IU or 5000IU) Recombinant Bovine Enterokinase (in 20mM Tris-HCl, pH 7.4, 200mM NaCl, 2mM CaCl2, 50% glycerol) 100 μg Cleavage Control Protein (Lyophilized after extensive dialysis against PBS, pH 7.0) 3.6 ml EK Dilution/Storage Buffer (20mM Tris-HCl, pH 7.4, 200mM NaCl, 2mM CaCl2, 50% glycerol) 1.8 ml 10X EK Cleavage/Capture Buffer (200mM Tris-HCl, pH 7.4, 500mM NaCl, 20mM CaCl2) Storage: Store kit components at -20 °C.
TMPRSS15
Origine: Boeuf (Vache)
Recombinant
Active
Restrictions
For Research Use only
Format
Liquid
Buffer
Sterile liquid solution contians 20 mM Tris, 200 mM NaCl, 2 mM CaCl2, 50 % glycerol, pH 7.4.
Conseil sur la manipulation
Avoid freeze-thaw cycles.
Stock
-20 °C
Stockage commentaire
Recombinant Bovine Enterokinase (rbEK) remains stable up to 1 year at -20 °C from date of receipt. It will remain stable at 37 °C for one week without losing any activity.
Enterokinase (EK) is an enzyme produced by cells of the duodenum and involved in human digestion. It plays a role of turning trypsinogen to its active form trypsin, and indirectly activates the pancreatic digestive enzymes. Enterokinase is a specific protease that cleaves after a lysine preceded by four aspartic acids: Asp-Asp-Asp-Asp-Lys. Enterokinase will not work if the recognition site is followed by a proline. Recombinant Bovine Enterokinase (rbEK) as the light chain is a single glycosylated polypeptide chain containing 200 amino acids. A fully biologically active molecule, rbEK has a molecular mass of 22.7 kDa and is obtained by proprietary chromatographic techniques. Synonyms: Enteropeptidase, ENTK, PRSS7