己糖激酶 (HK)

CAS: 9001-51-8 货号: R1506898 EC号: 232-611-5 PubChem CID: 176259338
有货
级别和纯度: 生物活性 ? 生物活性级(Bioactive)—— 经验证在功能检测中保持生物活性。当分子须具有功能活性而不仅是纯度时使用。 重组 ? 重组(Recombinant)—— 通过重组表达生产,序列确定、批次稳定。适用于来源明确、无动物源的可重现蛋白。 ActiBioPure™ ? ActiBioPure™ —— 阿拉丁面向生物活性和重组产品的优质系列。当同时需要高纯度和保持生物活性时使用。 高性能 ? 高性能级 —— 纯度和性能特性经过优化。适用于普通等级无法满足的灵敏分析。 EnzymoPure™ ? EnzymoPure™ —— 阿拉丁的高质量酶解决方案系列。当酶纯度和明确活性决定检测或工艺性能时使用。 ≥80%(SDS-PAGE) 270-370 U/mg enzyme powder
Accession #
P04806,P04807
表达系统
E. coli
生物活性
270-370 U/mg enzyme powder
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规格
库存
价格
数量
1KU
R1506898-1KU
现货 Stock Image
¥499.90
5KU
R1506898-5KU
现货 Stock Image
¥1,699.90
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为什么选择此级别

ActiBioPure™,EnzymoPure™,生物活性,重组,高性能 级 提供 ≥80%(SDS-PAGE) 纯度,适用于对基线干扰要求严格的色谱和分析工作流程。

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储存与运输

-20°C储存,避免反复冻融。超低温运输 。请查阅批次 COA 获取详细规格。

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质量文档

SDS、COA、产品数据表及规格说明书均可下载。可通过批号查询获取批次 COA。

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文献证明

在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。

概述


Hexokinase can catalyze the phosphorylation of the 6-hydroxyl group of hexose. When coupled with glucose-6-phosphate dehydrogenase, this enzyme can be used for the enzymatic determination of glucose, adenosine 5'-triphosphate (ATP) and creatine kinase. 

Application:This product can be used for the rapid clinical detection of α-amylase content in human serum and urine samples, as well as the research and development and production of α-amylase detection kits. 

Assay Procedure

PRINCIPLE

The appearance of NADH is measured at 340nm by spectrophotometry.

UNIT DEFINITION

One unit causes the formation of one micromole of NADH per minute at pH8.0 at 30°C.

Reagents:

A. Tris-HCl buffer, pH8.0: 50mM, containing 13.3mM MgCl₂
B. Glucose solution: 0.67M in Tris-HCl buffer solution(A)(The solution should be kept at room temperature at least for 1 hour before use)
C. ATP solution: 16.5mM in Tris-HCl buffer solution(A)(Should be prepared fresh)
D. NAD⁺ solution: 6.8mM in Tris-HCl buffer solution(A)(Should be prepared fresh)
E. G-6-PDH solution: 300U/ml(Dilute with Tris-HCl buffer solution(A)and store on ice)
F. Enzyme diluent: Tris-HCl buffer solution(A) contg.0.1% of bovine serum albumin

Procedure:

1. Prepare the following reaction mixture in a cuvette(d=1.0cm)and equilibrate at 30°C for about 5 minutes.

2.30mlTris-HCl buffer solution(A)
0.50mlGlucose solution(B)
0.10mlATP solution(C)
0.10mlNAD⁺ solution(D)
0.01mlG-6-PDH solution(E)
Concentration in assay mixture 
Tris-HCl buffer50mM
Glucose0.11M
ATP0.53mM
NAD⁺0.22mM
MgCl₂13mM
BSA3.2μg/ml
G-6-PDHca. 1.0U/ml

2. Add 0.1ml of the enzyme solution* and mix by gentle inversion.

3. Record the increase of optical density at 340nm against water for 4~5minutes in a spectrophotometer thermostated at 30°C, and calculate the △OD per minute from the initial linear portion of the curve (△OD test).

At the same time, measure the blank rate(△OD Blank)by using the same method as the test expect that the enzyme diluent is added instead of the enzyme solution.
*:Dissolve the enzyme preparation in ice-cold enzyme diluent(F)and dilute to 0.1~0.3U/ml with the same buffer, immediately before assay.


Calculation:

Activity can be calculated by using the following formula:


Vt: Total volume(3.11ml)

Vs: Sample volume(0.1ml)

6.22: Millimolar extinction coefficient of NADH under the assay condition (cm²/μM)

1.0: Light path length(cm)

df: Dilution factor

C: Enzyme concentration in dissolution(c mg/ml)

规格

产品名称
己糖激酶 (HK)
英文别名
hexokinase type I | hexokinase type II | hexokinase type III | hexokinase type IV (glucokinase) | HXK1 | HXK2 | HEX1 | HKB | SCI
规格或纯度
生物活性,重组,ActiBioPure™,高性能,EnzymoPure™,≥80%(SDS-PAGE),270-370 U/mg enzyme powder
生物活性
270-370 U/mg enzyme powder
表达系统
E. coli
来源
重组表达
CAS编号和信息
9001-51-8
酶学委员会编号
EC 2.7.1.1
分子类型
酶
产品线
生物产品
储存与运输
物理形态
冻干(Lyophilized)
浓度
270-370 U/mg enzyme powder
复溶
Reconstitute in ice-cold 50mM Tris-HCl buffer, pH8.0, containing 13.3mM MgCl2 and 0.1% of bovine serum albuminand, dilute to 0.1~0.3U/ml with the same buffer, immediately before assay.
储存条件
-20°C储存,避免反复冻融
运输条件
超低温运输
稳定性与储存
长期储存-20℃(36个月);复溶后建议分装,避免反复冻融;避光。
单位定义
One unit causes the formation of one micromole of NADH per minute at pH8.0 at 30°C.

技术文档

📋 安全数据表 (SDS)

全面的危险、操作、储存及法规合规文件。

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✅ 分析证书 (COA)

批次质量数据。输入批号以获取对应 COA。

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📊 产品数据表

产品规格和应用的快速参考摘要。

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🔬 规格说明书

该级别的完整质量属性和验收标准。

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高级数据

质检证书(CoA,COO,BSE/TSE 和分析图谱)
C of A & Other Certificates(BSE/TSE, COO):
输入批号以搜索分析图谱:

通过匹配包装上的批号来查找并下载产品的 COA,每批产品都进行了严格的验证,您可放心使用!

找到2个结果

批号(Lot Number) 证书类型 货号
ZJ26F0333378 分析证书 R1506898
ZJ26F0333377 分析证书 R1506898
技术文档和文章
从蔗糖到单糖:糖转化过程中的关键酶节点与调控逻辑
From Sucrose to Monosaccharides: Key Enzymatic Nodes and Regulatory Logic in Sugar Conversion
糖酵解限速酶调控:己糖激酶、磷酸果糖激酶与丙酮酸激酶的功能比较
Regulation of Glycolytic Rate-Limiting Enzymes: Functional Comparison of Hexokinase, Phosphofructokinase, and Pyruvate Kinase
葡萄糖酶法检测技术比较:葡萄糖氧化酶、葡萄糖脱氢酶与己糖激酶法的应用选择
Comparison of Enzymatic Glucose Detection Methods: Glucose Oxidase, Glucose Dehydrogenase, and Hexokinase Methods
葡萄糖-6-磷酸(G6P)在糖代谢分流、NADPH生成与疾病机制研究中的应用
Applications of Glucose-6-Phosphate (G6P) in Glycolytic Branching, NADPH Generation, and Disease Mechanism Research
溶液计算器

常见问题

本产品的纯度是多少?如何测定?
本产品的纯度为 ≥80%,采用SDS-PAGE测定。批次的具体数值以分析证书(COA)为准。