荧光素酶
荧光素酶
Luciferase
产品编码 |
产品名称 |
规格 |
包装 |
北京华越洋生物G9541 |
荧光素酶-1mg |
分析纯AR,99% |
1mg |
北京华越洋生物G9541 |
荧光素酶-5mg |
分析纯AR,99% |
5mg |
荧光素酶
英文名称:Luciferase firefly;Luciferase from Photinus pyralis (firefly)
别名:荧光素酶(萤火虫);重组型酵素
CAS号:61970-00-1
大量现货促销,保质期1年
保存:-20℃蛋白质低温保存。
荧光素酶其实就是一种特殊的蛋白质,通过氨基酸排序的不同,可以反射各种颜色的光。
荧光素酶是自然界中能够产生生物萤光的酶的统称,其中最有代表性的是一种学名为Photinus pyrali的萤火虫体内的荧光素酶。在相应化学反应中,萤光的产生是来自于荧光素的氧化,有些情况下反应体系中也包括三磷酸腺苷(ATP)
华越洋生物的荧光素酶性状:粉末。
用途:生化研究。
荧光素酶详细介绍:
活力定义:
One light unit produces a biometer peak height equivalent to 0.02 μCi of 14C in PPO/POPOP cocktail. Light units measured in 50 μl assay mixture containing 5 pmol ATP and 7.5 nmol luciferin in Tris-glycine buffer, pH 7.6, at 25 °C
产品描述:
Two contaminant, ATP-consuming activities are assayed for in this product, ATPase and nucleoside diphosphokinase. These impurities are found to be less than 5 nanomolar units/mg protein and less than 20 nanomolar units/mg protein, respectively.
Note: Prior to 1991, a unit of firefly luciferase activity was defined as that amount which will produce 1.0 nanomole of pyrophosphate per minute at pH 7.7, 25 °C, using a system containing 0.6 mM ATP and 0.1 mM D-luciferin. The former nanomolar unit is equivalent to approximately 1.3 x 106 light units
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