重组人肠激酶，轻链/Enterokinase Human_详细资料

产品信息 重组人肠激酶，轻链/Enterokinase Human 产品编号:ENZ-260产品名称:重组人肠激酶，轻链/Enterokinase Human产品规格:20IU/100IU/500IU Catalogue Number ENZ-260 Synonyms Enteropeptidase, EC 3.4.21.9, Enterokinase, Serine protease 7, ENTK,TMPRSS15, MGC133046, Transmembrane Protease Serine 15. Introduction Enteropeptidase or enterokinase is an enzymeinvolved in human digestion. It is produced by cells in the duodenum wall, and is secreted from duodenums glands, the crypts of Lieberk?hn, whenever ingested food enters the duodenum from the stomach. Enteropeptidase has the critical job of turning trypsinogen(a zymogen) to trypsin, indirectly activating a number of pancreaticdigestive enzymes. Enteropeptidase is a serine proteaseenzyme(EC3.4.21.9). Enteropeptidase is a part of the Chymotrypsin-clan of serine proteases, and is structurally similar to these proteins. Description Enteropeptidase Human is a specific protease that cleaves after the sequence Asp-Asp-Aps-Aps-Lys. The light chain of enteropeptidase has full enzymatic activity. No other protease activity was detected. Human enteropeptidase binds specifically to STI-agarose. The affinity puirifed Human Enterokinase contains amino acids from 785 to 1019. Source Escherichia Coli. Physical Appearance Liquid solution. Formulation 50mM Tris-HCl, pH 8.0, 0.5M NaCl, 1mM CaCl2 and 50% glycerol. Stability One year when stored at –20°C, three weeks at room temperature. Unit Defenition One unit of human enteropeptidase will cleave 2 mg of thioredoxin/human EGF fusion protein with the Asp-Asp-Asp-Asp-Lys sequence at the joining point in 22 hours at 4°C, in 16 hours at 25°C or in 8 hours at 37°C. Assay Conditions 50mM Tris-HCl or sodium phosphate (pH 8.0) at 25°C with or without CaCl2. The enzyme is active at a pH range of 6.0-9.0. Dilution buffer 50mM Tris-Hcl, pH 8.0 at 25C, 500mM NaCl, 1mM CaCl2 and 50% glycerol. Purity Greater than 98.0% as determined by SDS-PAGE. Usage Prospecs products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

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Catalogue Number	ENZ-260
Synonyms	Enteropeptidase, EC 3.4.21.9, Enterokinase, Serine protease 7, ENTK,TMPRSS15, MGC133046, Transmembrane Protease Serine 15.
Introduction	Enteropeptidase or enterokinase is an enzymeinvolved in human digestion. It is produced by cells in the duodenum wall, and is secreted from duodenums glands, the crypts of Lieberk?hn, whenever ingested food enters the duodenum from the stomach. Enteropeptidase has the critical job of turning trypsinogen(a zymogen) to trypsin, indirectly activating a number of pancreaticdigestive enzymes. Enteropeptidase is a serine proteaseenzyme(EC3.4.21.9). Enteropeptidase is a part of the Chymotrypsin-clan of serine proteases, and is structurally similar to these proteins.
Description	Enteropeptidase Human is a specific protease that cleaves after the sequence Asp-Asp-Aps-Aps-Lys. The light chain of enteropeptidase has full enzymatic activity. No other protease activity was detected. Human enteropeptidase binds specifically to STI-agarose. The affinity puirifed Human Enterokinase contains amino acids from 785 to 1019.
Source	Escherichia Coli.
Physical Appearance	Liquid solution.
Formulation	50mM Tris-HCl, pH 8.0, 0.5M NaCl, 1mM CaCl2 and 50% glycerol.
Stability	One year when stored at –20°C, three weeks at room temperature.
Unit Defenition	One unit of human enteropeptidase will cleave 2 mg of thioredoxin/human EGF fusion protein with the Asp-Asp-Asp-Asp-Lys sequence at the joining point in 22 hours at 4°C, in 16 hours at 25°C or in 8 hours at 37°C.
Assay Conditions	50mM Tris-HCl or sodium phosphate (pH 8.0) at 25°C with or without CaCl2. The enzyme is active at a pH range of 6.0-9.0.
Dilution buffer	50mM Tris-Hcl, pH 8.0 at 25C, 500mM NaCl, 1mM CaCl2 and 50% glycerol.
Purity	Greater than 98.0% as determined by SDS-PAGE.
Usage	Prospecs products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.