磷酸葡萄糖异构酶 (GPI)

CAS: 9001-41-6 货号: P1523406 EC号: 232-603-1
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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。 ≥250 U/mg enzyme powder
Accession #
P13375,P13376
生物活性
≥250 U/mg enzyme powder
★
规格
库存
价格
数量
1KU
P1523406-1KU
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¥999.90
5KU
P1523406-5KU
现货 Stock Image
¥2,999.90
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为什么选择此级别

ActiBioPure™,EnzymoPure™,生物活性,重组,高性能 级 ,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

避光,-20°C储存,干燥,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


Phosphoglucose isomerase (GPI) is a highly conserved glycolytic and dimeric enzyme. Phosphoglucose isomerase (GPI) catalyzes the reversible isomerization of glucose-6-phosphate to fructose-6-phosphate.

Preparation and Specification

Appearance: White amorphous powder, lyophilized

Specific activity: More than 250 U/mg solid

Properties
Molecular weight200 kDa (gel filtration)
50 kDa (SDS–PAGE)

Isoelectric point pH 4.3

Michaelis constantsD–Fructose–6–phosphate 0.21 mM (at 37 ℃)

Optimum pH9.5
Figure 1
pH stability6.5–10.5 (37℃, 1 hr.)
Figure 2
Thermal stabilityStable at 60℃ and below
Figure 3
Applications for Diagnostic Test

This enzyme is useful for enzymatic determination of F–6–P.

Assay

Principle

The assay is based on the increase in absorbance at 340 nm as the formation of NADPH proceeds in the following reactions:

Unit definition

One unit is defined as the amount of enzyme which converts 1 μmole of fructose–6–phosphate to D–Glucose–6–phosphate per minute at 37℃ under the conditions specified in the assay procedure.

Reagents

1.  Reaction mixture (10test)

0.1M Tris-HCl Buffer pH9.0 28.44 ml

0.1M Fructose-6-P solution 0.90 ml

22.5mM NADP solution 0.60 ml

700U/ml G6PDH suspension 0.06 ml

※ Use G6PDH 10mg/2ml (700U/ml) : market product

2. Enzyme dilution buffer

50mM Tris–HCl buffer pH8.5

Enzyme solution

Accurately weigh about 10 mg of the sample and add enzyme dilution buffer to make a total of 10 ml. Dilute it with enzyme dilution buffer to adjust the concentration to 5.0–10.0 U/ml.

Procedure

1. Pipette accurately 3.0 ml of reaction mixture into a small test tube and preincubate at 30℃.

2. After 5 min add accurately 10 μl of enzyme solution and mix to start the reaction at 30℃.

※ In the case of a test blank, add 10 μl of enzyme dilution buffer in place of enzyme solution.

3. After starting the reaction, measure the rate of increase per minutes in absorbance at 340 nm. The rate must be measured within the linear portion of the absorbance curve. (Ex. Linear range from 2 min to 5 min)

Absorbance sample :As/min

blank :Ab/min

△A = (As−Ab) ≦ 0.20 Abs

Calculation

Activity (U/mg of powder) = {(ΔA/min)/6.22} × 3.01/0.01 × 1/x

6.22 : millimolar extinction coefficient of NADH at 340nm (cm²/µmol)

3.01 : final volume (ml)

0.01 : volume of enzyme solution (ml)

X : concentration of the sample in enzyme solution (mg/ml)

规格

产品名称
磷酸葡萄糖异构酶 (GPI)
别名
磷酸己糖异构酶 | 葡萄糖磷酸异构酶 | 6 - 磷酸葡萄糖异构酶 | 己糖磷酸异构酶
英文别名
D–Glucose–6–phosphate ketol–isomerase | glucose-6-phosphate isomerise | D-glucose-6-phosphate aldose-ketose-isomerase | glucose-6-phosphate isomerase | D-glucose-6-phosphate ketol-isomerase | hexose monophosphate isomerase | hexosephosphate isomerase | ox
规格或纯度
生物活性, 重组, ActiBioPure™, 高性能, EnzymoPure™, ≥250 U/mg enzyme powder
生化机理
Catalyzes the reversible isomerization of glucose-6-phosphate to fructose-6-phosphate.
生物活性
≥250 U/mg enzyme powder
种属
嗜热脂肪地芽孢杆菌(Geobacillus stearothermophilus)
来源
重组表达
预测分子量
189 kDa
CAS编号和信息
9001-41-6
酶学委员会编号
EC 5.3.1.9
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
≥250 U/mg enzyme powder
复溶
Reconstitute in 50mM Tris–HCl buffer pH8.5 to a concentration of 1mg/ml.
储存条件
避光,-20°C储存,干燥,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℃(12个月);复溶后建议分装,避免反复冻融;避光;密封。
单位定义
One unit is defined as the amount of enzyme which converts 1 μmole of fructose–6–phosphate to D–Glucose–6–phosphate per minute at 37℃ under the conditions specified in the assay procedure.

技术文档

📋 安全数据表 (SDS)

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✅ 分析证书 (COA)

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🔬 规格说明书

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高级数据

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批号(Lot Number) 证书类型 货号
ZJ26F0737463 分析证书 P1523406
ZJ26F0737462 分析证书 P1523406
技术文档和文章
溶液计算器