产品名称：核糖核酸酶 B 来源于牛胰腺

规格或纯度：EnzymoPure™, ≥1,000 units/mg dry weight

产品介绍：

Pancreatic ribonuclease (RNase I) catalyzes cleavage of the phosphodiester bond between the 5'-ribose of a nucleotide and the phosphate group attached to the 3'-ribose of an adjacent pyrimidine nucleotide forming a 2',3'-cyclic phosphate which may then be hydrolyzed to the corresponding 3'-nucleoside phosphate. Ribonuclease A has a molecular weight of 13,700 daltons. It operates in an optimum pH range of 7.0-7.5. Ribonuclease B has a molecular weight of 14,700 ± 300 daltons. It is a glycoprotein which possesses an amino acid composition indistinguishable from that of RNase A. It contains 6 residues of mannose and 2 residues of N-acetylglucosamine per molecule. It is a glycosylated derivative of RNase A. Ribonuclease is inhibited by heavy metal ions and it is competitively inhibited by DNA. Since Molecular Biology Grade RNase A (Product R128619) is essentially free of DNase and protease activities, this product is useful in removing RNA from DNA in nucleic acid work and where other enzymes are used or where intact proteins must be recovered.

级别：EnzymoPure™

浓度：≥1,000 units/mg dry weight

储存条件：2-8°C储存

运输条件：低温运输

CAS编号和信息：9001-99-4

酶学委员会编号：I.U.B.: 3.1.27.5

单位定义：One Kalnitsky Unit causes an increase in absorbance of 1.0 at 260nm at 37°C and pH 5.0 when yeast ribosomal RNA is hydrolyzed to acid soluble oliognucleotides. One Kunitz unit equals 50 Worthington units.

查看阿拉丁官网此产品相关对应页面：https://www.aladdin-e.com/zh_cn/R128623.html