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- 2025年09月05日
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- 详细信息
- 文献和实验
- 技术资料
- 保存条件：
低温
- 英文名：
β-Nicotinamide adenine dinucleotide phosphate disodium salt
- 库存：
现货
- 供应商：
上海善然生物科技有限公司
Application
Glucose oxidase is widely used in the food and pharmaceutical industries1 as well as a major component of glucose biosensors.2
Biochem/physiol Actions
Glucose oxidase catalyses the oxidation of β-d-glucose to d-glucono-β-lactone and hydrogen peroxide, with molecular oxygen as an electron acceptor.3,4
Unit Definition
1 U corresponds to the amount of enzyme which oxidizes 1 μmol glucose per minute at pH 7.0 and 25 °C
One unit will oxidize 1.0 μmole of β-D-glucose to D-gluconolactone and H2O2 per min at pH 5.1 at 35 °C, equivalent to an O2 uptake of 22.4 μl per min. If the reaction mixture is saturated with oxygen, the activity may increase by up to 100%.
General description
Molecular Weight: 160 kDa (gel filtration)
pI: 4.2
Extinction coefficient: E1% = 16.7 (280 nm)
Glucose oxidase from Aspergillus niger is a dimer consisting of 2 equal subunits with a molecular mass of 80 kDa each. Each subunit contains one flavin adenine dinulceotide moiety and one iron. The enzyme is a glycoprotein containing ~16% neutral sugar and 2% amino sugars. The enzyme also contains 3 cysteine residues and 8 potential sites for N-linked glycosylation.
Glucose oxidase is capable of oxidizing D-aldohexoses, monodeoxy-D-glucoses, and methyl-D-glucoses at varying rates.
The pH optimum for glucose oxidase is 5.5, while it has a broad activity range of pH 4-7. Glucose oxidase is specific for β-D-glucose with a KM of 33-110 mM.
产品名称
Application
Nicotinamide adenine dinucleotide phosphate (NADP) and NADPH form a redox pair. NADP/NADPH is a coenzyme that supports redox reactions via the transport of electrons in a vast array of applications, especially anaerobic reactions such as lipid and nucleic acid synthesis. NADP/NADPH is a coenzyme couple in various cytochrome P450 systems and oxidase/reductase reaction systems, such as the thioredoxin reductase/thioredoxin system.
性质
Related Categories Bulk vials, NAD(P)(H) and Analogs, NADP, 核苷，核苷酸和寡核苷酸, 生化试剂
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assay ≥97.0% (calc. based on dry substance, enzymatic)
impurities ≤7% water
cation traces Ca: ≤1000 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
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文献和实验Nicotinamide adenine dinucleotide (NAD+ ) plays a critical role in regulating numerous biological and physiological pathways including metabolism, inflammation, cancer, and aging in mammals. Here we describe a highly quantitative method
烟酰胺腺嘌呤二核苷酸磷酸nicotinamide adenine dinucleotide phosphate
烟酰胺腺嘌呤二核苷酸磷酸 nicotinamide adenine dinucleotide phosphate 缩写 NADP，曾称为三磷酸吡啶核苷酸（ TPN）或辅脱氢酶Ⅱ或辅酶Ⅱ。它是一种辅酶，是烟酸酰胺腺嘌呤二核苷酸与一个磷酸分子以酯键结合的物质，广泛存在生物界。化学性质、吸收光谱、氧化还原形式等均类似 NAD。它通过 6-磷酸葡萄糖脱氢酶（ EC． 1． 1． 1． 49）， 6-磷酸葡萄糖酸脱氢酶（ EC． 1． 1． 1． 44）等，可被许多脱氢酶进行可逆
dinucleotide phosphate (NAADP) is another novel messenger that releases calcium from internal stores and is produced by these same enzymes by an exchange reaction. NAADP targets lysosomal stores whereas cADPR releases calcium from the endoplasmic reticulum
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