等级
reagent grade
产品线
Vetec™
形式
powder
比活
≥30 units/mg protein
分子量
28.93 kDa
技术
DNA extraction: suitable
异质活性
Dnase ≤30 units/mg solid
储存温度
−20°C
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应用
在分离DNA和RNA的过程中，用于核酸酶的蛋白水解失活。
用于去除内毒素结合的阳离子蛋白，如溶菌酶和核糖核酸酶A。
据报道，其可用于分离肝、酵母和绿豆线粒体
用于测定酶在细胞膜上的定位
用于石蜡包埋组织切片的处理，暴露用于抗体标记的抗原结合位点。
用于可传播海绵状脑病(TSE)研究中朊病毒脑组织样本蛋白的消化。
用于去除内毒素结合的阳离子蛋白，如溶菌酶和核糖核酸酶A。
据报道，其可用于分离肝、酵母和绿豆线粒体
用于测定酶在细胞膜上的定位
用于石蜡包埋组织切片的处理，暴露用于抗体标记的抗原结合位点。
用于可传播海绵状脑病(TSE)研究中朊病毒脑组织样本蛋白的消化。
生化/生理作用
蛋白酶K是一种稳定且具有高活性的丝氨酸蛋白酶。晶体和分子结构研究证据表明该酶属于枯草素家族，具有活性位点催化三联体(Asp39-His69-Ser224)。它在一系列广泛的环境中均稳定：pH，缓冲盐，去污剂（SDS）以及温度。 在0.1-0.5% SDS存在的情况下，蛋白酶K可保持活性，在不损害分离DNA完整性的前提下，可以消化DNA制剂中的多种蛋白质和核酸酶。
单位定义
在pH 7.5、37摄氏度条件下，一单位酶每分钟水解尿素变性的血红蛋白产生的颜色强度，相当于1.0微摩酪氨酸。
法律信息
Vetec is a trademark of Merck KGaA, Darmstadt, Germany
警示用语：
Danger
危险分类
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
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