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Product details
名称
Glutathione Reductase (Yeast, Recombinant)
别名
谷胱甘肽还原酶(酵母,重组)
货号
G746317-300U
包装规格
300U
浓度
不含Protease、DNase、RNase和磷酸酯酶。
产品介绍
Glutathione Reductase (Yeast, Recombinant), 即酵母重组谷胱甘肽还原酶,是由阿拉丁自主研发的PerfectProtein™技术平台表达、纯化获得的一种来源于酿酒酵母的黄素酶,可以依赖于NADPH将氧化型谷胱甘肽还原为还原型谷胱甘肽Glutathione 。Glutathione Reductase催化的反应请参考图1。图1. 阿拉丁生产的P2372 Glutathione Reductase (Yeast, Recombinant)反应原理图。R-OOH为过氧化物。谷胱甘肽还原酶是抗氧化防御系统中的关键酶。还原型谷胱甘肽(Glutathione, GSH)被谷胱甘肽过氧化物酶(Glutathione Peroxidase, GPx)氧化为GSSG;谷胱甘肽还原酶(Glutathione Reductase, GR)利用NADPH将GSSG催化还原为GSH,同时NADPH转化为NADP+;而再生的GSH可用于降低细胞内的氧化水平,缓解氧化应激1]。Glutathione Reductase通常以同源二聚体(Homodimer)形式存在,每个亚基均非共价地结合一个FAD分子为辅基。Glutathione Reductase的表达受褪黑激素(Melatonin)刺激,并被许多氧自由基生成系统所抑制。Glutathione Reductase广泛存在于植物,细菌,酵母,小鼠和人类中1-3]。阿拉丁生产的Glutathione Reductase (Yeast, Recombinant)用于总谷胱甘肽检测体系对GSH标准曲线的实测效果请参考图2。图2. 阿拉丁生产的P2372 Glutathione Reductase (Yeast, Recombinant)用于GSH标准曲线检测的效果图。本检测使用了阿拉丁的总谷胱甘肽检测试剂盒。反应体系中,GSH与DTNB (生色底物)反应生成GSSG和黄色的TNB,在412nm处具有最大吸光值,且TNB的形成速率与样品中GSH的浓度成比例;在NADPH存在时,Glutathione Reductase可将GSSG还原为2GSH,所以测量的谷胱甘肽量代表样品中还原和氧化型谷胱甘肽含量的总和。使用本产品或S公司(Competitor)的Glutathione Reductase,在210μl的反应体系中加入图中指定量的GSH,等量的Glutathione Reductase和其它反应物。横坐标为不同浓度的GSH,纵坐标为反应25分钟后测得的一次吸光度。阿拉丁生产的Glutathione Reductase (Yeast, Recombinant)和S公司的产品具有类似的催化效果,图中数据仅供参考,实际的检测效果可能会因具体反应条件的不同而有所不同。 用途 : 将GSSG催化还原为GSH;和谷胱甘肽过氧化物酶的偶联酶系统中再生还原型谷胱甘肽;与乙醛酸酶I (Glyoxylase I)偶联以定量生物样品中GSH和GSSG的量;在总谷胱甘肽的测定中,将体内所用的GSSG还原为GSH。 来源 : 由大肠杆菌重组表达酿酒酵母谷胱甘肽还原酶基因。 酶储存溶液 : 20 mM Tris-HCl, 100mM NaCl, 50% Glycerol, pH 7.5 at 25℃. 注意事项 : 本产品仅限于专业人员的科学研究用,不得用于临床诊断或治疗,不得用于食品或药品,不得存放于普通住宅内。为了您的安全和健康,请穿实验服并戴一次性手套操作。\t'], 使用说明 : 参考文献: 1.Couto N, Wood J, Barber J. Free Radic Biol Med. 2016; 95:27-42. 2.Demiral, T. et al., Environmental and experimental botany. 2005; 53(3): 247-257. 3.Massey, V. et al., J. Biol. Chem. 1965; 240(11):4470-4480. Application : Reduction of GSSG to GSH; regeneration of GSH in coupled enzyme systems with glutathione peroxidase; coupling with Glyoxylase I to quantify GSH and GSSG content in biological samples; reduction of GSSG to GSH in total glutathione assays. Source : Recombinantly expressed and purified from E. coli.Unit definitiont: One unit is defined as the amount of enzyme required to reduce 1.0 μmole of GSSG at 25ºC per min at pH7.6. Purity: Free of protease, DNase, RNase, and phosphodiesterase. Enzyme storage buffer : 20 mM Tris-HCl, 100mM NaCl, 50% Glycerol, pH 7.5 at 25ºC. Precautions : This product is for R&D only. Not for drug, household, or other uses.For your safety and health, please wear a lab coat and disposable gloves during the operation. Instructions for Use : None
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Glutathione Reductase (Yeast, Recombinant) 300U

Glutathione Reductase (Yeast, Recombinant) 300U; supplied for laboratory research, analysis, inspection, and scientific procurement use.

item number:G746317-300U
Product model:300U
level: Protease, DNase, RNase and phosphatase free.
Lead Time:30days
sold 974 Items
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300U

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