Merck
All Photos(4)

R5000

Sigma-Aldrich

核糖核酸酶A 来源于牛胰腺

Type II-A, ≥60% (SDS-PAGE), >= 60 Kunitz units/mg protein

Synonym(s):
RNAsea, RNase A, 核糖核酸 3′-嘧啶寡核苷酸水解酶, 核糖核酸酶 I, 胰核糖核酸酶
CAS Number:
Enzyme Commission number:
EC 号:
MDL编号:
NACRES:
NA.54

类型

Type II-A

形式

solid

specific activity

>= 60 Kunitz units/mg protein

分子量

~13,700

浓度

≥60% (SDS-PAGE)

杂质

salt, essentially free

application(s)

diagnostic assay manufacturing

储存温度

−20°C

InChI

1S/C9H14N4O3/c10-2-1-8(14)13-7(9(15)16)3-6-4-11-5-12-6/h4-5,7H,1-3,10H2,(H,11,12)(H,13,14)(H,15,16)

Inchi Key

CQOVPNPJLQNMDC-UHFFFAOYSA-N

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This Item
R5125R4875R5250
form

solid

form

lyophilized powder

form

powder

form

buffered aqueous solution

specific activity

>= 60 Kunitz units/mg protein

specific activity

85-140 Kunitz units/mg protein

specific activity

≥50 Kunitz units/mg protein

specific activity

≥70 Kunitz units/mg protein

mol wt

~13,700

mol wt

~13,700

mol wt

~13,700

mol wt

~13,700

concentration

≥60% (SDS-PAGE)

concentration

-

concentration

≥60% (RNase A, SDS-PAGE)

concentration

-

impurities

salt, essentially free

impurities

salt, essentially free

impurities

salt, essentially free

impurities

-

application(s)

diagnostic assay manufacturing

application(s)

diagnostic assay manufacturing

application(s)

diagnostic assay manufacturing

application(s)

-

一般描述

RNase A(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。RNase A是含有四个二硫键的单链多肽。它与RNase B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。RNase A还可以水解蛋白质样品中的RNA。RNase A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。
核糖核酸酶不水解脱氧核糖核酸,因为脱氧核糖核酸缺乏对环状中间体的形成至关重要的2′-羟基。核糖核酸酶可以水解蛋白质样品中的核糖核酸。胰腺核糖核酸酶A在嘧啶(尿嘧啶或胞嘧啶)磷酸键的 3′-侧。

应用

  • RNase A用于去除DNA质粒和基因组DNA制品和蛋白质样品中的RNA。
  • RNase A还用于RNA序列分析和保护测定。
  • RNase A已用作计算辅助药物设计的工具。
  • RNase A为RNA序列分析提供支持。
  • RNase A水解蛋白质样品中的RNA。
  • RNase A为DNA纯化提供支持。
核糖核酸酶A可用于从DNA质粒制备物和蛋白质样品中除去RNA。核糖核酸酶A可用于RNA酶保护测定、去除非特异性结合的RNA、分析RNA序列、水解蛋白质样品中包含的RNA、以及DNA的纯化。来自牛胰腺的核糖核酸酶A已被用于评估人核糖核酸酶-1的杂合酶活性的研究中。 来自牛胰腺的核糖核酸酶A也已被用于研究阳离子交换蛋白置换色谱中基于颗粒的整体柱。

特点和优势

我们高度稳定的核糖核酸酶A——RNase A,适合于RNA去除、RNA测序和DNA纯化。

制备说明

色谱纯化产品

分析说明

蛋白测定方法:E.
通过 SDS-PAGE 测定 RNase A 纯度

象形图

Health hazard

警示用语:

Danger

危险声明

预防措施声明

危险分类

Resp. Sens. 1

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(F)

Not applicable

闪点(C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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