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酶显色底物ADP-ribose-pNP
货号 | 11700 | 存储条件 | 在零下15度以下保存, 避免光照 | |
规格 | 1 mg | 价格 | 2544 | |
Ex (nm) | 405 | Em (nm) | ||
分子量 | 724.37 | 溶剂 | Water | |
产品详细介绍 |
简要概述
酶显色底物ADP-ribose-pNP是美国AAT Bioquest生产的用于过氧化物酶的试剂,ADP-核糖-pNP是用来评估多聚ADP-核糖聚合酶(PARP)活性的一种显色底物。在405nm处可检测释放的p-硝基酚吸光度。标准曲线的斜率通常用来转换产生的ADP-核糖-pNP比色底物的的吸光度。使用ADP-核糖-pNP作为显色底物,PARP-1具有最大Km和Vmax数值(分别为151 uM和1.30nmolmin-1mg-1),其次是Tankyrase-1(82uM和18pmolmin-1mg-l)和VPARP(46uM和2 pmolmin-1mg-l)。显色底物通常用来决定PARP-1,tankyrase-1和VPARP 的动力学参数,然后筛选PARP-1,tankyrase-1和VPARP小分子抑制剂。由于ADP-核糖-pNP连续实验分析比标准的非连续PARP试验更有优势,因此其可用于高通量筛选PARP-1,tankyrase-1和VPARP的活性以及相关抑制剂。金畔生物是AAT Bioquest的中国代理商,为您提供最优质的酶显色底物ADP-ribose-pNP。
适用仪器
光吸收酶标仪 | |
吸收: | 405nm |
推荐孔板: | 白色孔板 |
产品说明书
样品实验方案
溶液制备
1.储备溶液
所有未使用的储备溶液应分成一次性等分试样,并在制备后储存在-20°C。 避免反复冻融循环。
1.1 ADP-核糖-pNP原液:
在H2O中制备5-10mM的储备溶液。 注意:应立即使用原液。
2.工作溶液
ADP-核糖-pNP工作溶液:
通过用测定缓冲液(50mM Tris,10mM MgCl 2,pH 8.0)稀释储备溶液来制备0.25mM测定溶液。
样品操作步骤
1.将0.01mL /孔的样品溶液加入0.09mL /孔测定溶液中,使96孔透明板中的最终体积为0.1mL。
2.使用吸光度酶标仪在405nm处监测平板。
参考文献
A colorimetric substrate for poly(ADP-ribose) polymerase-1, VPARP, and tankyrase-1
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Journal: Angew Chem Int Ed Engl (2007): 2066
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