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名称
核糖核酸酶A 来源于牛胰腺
别名
RNA酶
英文别名
pancreatic ribonuclease | pancreatic RNase | ribonuclease I | RNase | RNase A | RNase I | RNAsea | Ribonucleate 3′-pyrimidinooligonucleotidohydrolase | RNASE1 | RAC2 | RNS1
货号
R755000-100mg
包装规格
100mg
级别
生物活性
浓度
≥90%(SDS-PAGE)
产品介绍
RNaseA(核糖核酸酶A)是一种内切核糖核酸酶,在嘧啶核苷酸后裂解单链RNA的磷酸二酯键。它可切割3′磷酸基末端(例如,pG-pG-pC-pA-pG将切割为pG-pG-pCp和A-pG)。对单链RNA表现出最高活性。RNaseA是含有四个二硫键的单链多肽。它与RNaseB不同,并非糖蛋白。核糖核酸酶不会水解DNA,因为DNA缺乏形成环状中间体所必需的2′-OH基团。RNaseA还可以水解蛋白质样品中的RNA。RNaseA可被His12和His119的烷基化抑制并被钾盐和钠盐活化。RNAse在重金属离子存在时受到抑制。此外,RNase也被DNA竞争性抑制。 处理说明 RNaseA的一个主要应用是从质粒DNA的制备中去除RNA。此类应用中,无DNase的RNaseA的使用终浓度为10μg/mL。该RNaseA产品不需要煮沸原液以灭活剩余的DNase,这有可能导致RNase沉淀,并可能导致酶活性损失。如果RNase溶液在中性pH下加热,就会发生沉淀。当在较低的pH值下加热时,由于存在蛋白质杂质,可能会发生一些沉淀。RNaseA的激活剂包括钾和钠盐。RNaseA可被烷基化的His12或His119所抑制。 产品应用 RNaseA用于去除DNA质粒和基因组DNA制品和蛋白质样品中的RNA。 RNaseA还用于RNA序列分析和保护测定。 RNaseA已用作计算辅助药物设计的工具。 RNaseA为RNA序列分析提供支持。 RNaseA水解蛋白质样品中的RNA。 RNaseA为DNA纯化提供支持。
生化机理
Endonuclease that catalyzes the cleavage of RNA on the 3' side of pyrimidine nucleotides. Acts on single-stranded and double-stranded RNA. Catalytic activity: an [RNA] containing cytidine + H2O = an [RNA]-3'-cytidine-3'-phosphate + a 5'-hydroxy-ribonucleotide-3'-[RNA]. an [RNA] containing uridine + H2O = an [RNA]-3'-uridine-3'-phosphate + a 5'-hydroxy-ribonucleotide-3'-[RNA].
生物活性
≥60 KU/mg protein
来源
天然
预测分子量
~13.7 kDa
种属
牛(Bovine)
Safety
「No Dangerous Attributes」
Related
「No upstream and downstream information yet」
Technical Documents
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Research chemical 100mg; ≥90%

Research chemical 100mg; ≥90%; supplied for laboratory research, analysis, inspection, and scientific procurement use; specifications: 100mg; ≥90%.

item number:R755000-100mg
Product model:100mg
level: 100mg; ≥90%
Lead Time:30days
sold 40 Items
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100mg

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