RecombinantEnterokinase,His,Bovine

SKU: orb1494617

Description

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 at GenScript.

Images & Validation

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Application Notes	Reconstituted in ddH2O or PBS at 100 μg/ml.

Key Properties

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Source	P. pastoris
Biological Activity	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 25mM Tris-HCl, pH 8.0.
Molecular Weight	Theoretical MW: 22.7 kDa.Apparent MW: 40.0 kDa, observed by reducing SDS-PAGE.
Protein Sequence	0
Purification	> 95% by SDS-PAGE analyses.
Purity	> 95% by SDS-PAGE analyses.
Endotoxins	< 1.0 EU/μg, determined by LAL method.

Storage & Handling

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Storage	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.Please avoid freeze-thaw cycles.
Form/Appearance	Sterile liquid solution contians 20mM Tris, 200mM NaCl, 2mM CaCl2, 50% glycerol, pH 7.4.
Buffer/Preservatives	Sterile liquid solution contians 20mM Tris, 200mM NaCl, 2mM CaCl2, 50% glycerol, pH 7.4.
Expiration Date	6 months from date of receipt.
Disclaimer	For research use only

Alternative Names

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Enteropeptidase, ENTK, PRSS7

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