Enterokinase, His, Bovine

價格	￥400
產品編號	Z03004
規格	100 IU 500 IU 5000 IU 大單詢價
數量

產品概述產品屬性圖例

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. rbEK with 6 × His-tag binds with Ni²⁺ affinity chromatography and was designed for removing from digestion system.
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.

Synonyms

Enteropeptidase, ENTK, PRSS7

Note

For research use only

產品概述

Components	1. 100 IU(or 500IU or 5000IU) Recombinant Bovine Enterokinase (in 20mM Tris-HCl, pH 7.4, 200mM NaCl, 2mM CaCl₂, 50% glycerol) 2. 100μg Cleavage Control Protein (Lyophilized after extensive dialysis against PBS, pH 7.0) 3. 3.6 ml EK Dilution/Storage Buffer (20mM Tris-HCl, pH 7.4, 200mM NaCl, 2mM CaCl?, 50% glycerol) 4. 1.8 ml 10X EK Cleavage/Capture Buffer (200mM Tris-HCl, pH 7.4, 500mM NaCl, 20mM CaCl?)
Source	P. pastoris
Species	Bovine

產品屬性

Molecular Weight	~40 kDa, observed by reducing SDS-PAGE.
Purity	> 95% by SDS-PAGE analyses.
Endotoxin Level	< 1.0 EU/μg, determined by LAL method.
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.
Formulation	Sterile liquid solution contians 20mM Tris, 200mM NaCl, 2mM CaCl₂, 50% glycerol, pH 7.4.
Storage & Stability	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.

圖例

Lane 1: 2 μg of Enterokinase, His, Bovine, non-reducing (NR)
Lane 2: 2 μg of Enterokinase, His, Bovine, reducing (R)
> 95% as analyzed by SDS-PAGE ?

相關文獻

1. CaiChao, et al. Three Genes Define a Bacterial-Like Arsenic Tolerance Mechanism in the Arsenic Hyperaccumulating Fern Pteris vittata. Curr Biol. (2019-05)

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Enterokinase, His, Bovine

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