| 规格或纯度 | ≥2,000 units/mg dry weight |
|---|---|
| 英文名称 | Deoxyribonuclease I from Bovine Pancreas(Ribonuclease&Protease Free) |
| 别名 | 脱氧核糖核酸酶 I |
| 英文别名 | Deoxyribonucleate 5′-oligonucleotido-hydrolase;DNase I |
| 生化机理 | DNase I is an endonuclease that acts on phosphodiester bonds adjacent to pyrimidines to produce polynucleotides with terminal 5′-phosphates. In the presence of Mg2+, DNAse I cleaves each strand of DNA independently and the cleavage sites are random. Both DNA strands are cleaved at approximately the same site in the presence of Mn2+. Divalent cations such as Mn2+, Ca2+, Co2+, and Zn2+ are activators of the enzyme. A concentration of 5 mM Ca2+ stabilizes the enzyme against proteolytic digestion. The pH optimum is found to be between 7 and 8. DNAse I from bovine pancreas consists of four chromatographically distinguishable components, A, B, C, and D, with their molar ratios being 4:1:1 respectively. Only minor amounts of D are found. 2-Mercaptoethanol, chelators, sodium dodecyl sulfate (SDS)6 and actin7 are known to inhibit the enzyme activity. |
| 储存温度 | 2-8°C储存 |
| 运输条件 | 冰袋运输 |
| 备注 | 10KU卖完停产，不再备货 |
| 产品介绍 |
Bovine pancreatic deoxyribonuclease is an endonuclease which splits phosphodiester linkages, preferentially adjacent to a pyrimidine nucleotide yielding polynucleotides with free hydroxyl group at the 3' position and phosphate group at the 5' position. The average chain length of a limit digest is a tetranucleotide.用于从蛋白质样品中除去 DNA。 Deoxyribonuclease I from bovine pancreas has been used in a study to compare several procedures for reducing RNase contamination in preparations of DNase. Deoxyribonuclease I from bovine pancreas has also been used in a study to investigate the effect of the composition of sodium dodecyl sulfate preparations on the renaturation of enzymes after polyacrylamide gel electrophoresis. Bovine pancreatic deoxyribonuclease is an endonuclease which splits phosphodiester linkages, preferentially adjacent to a pyrimidine nucleotide yielding polynucleotides with free hydroxyl group at the 3' position and phosphate group at the 5' position. The average chain length of a limit digest is a tetranucleotide. |
| EC号 | 232-667-0 |
|---|---|
| 分子式 |
|
| PubChem CID | 597667 |
| 敏感性 | 易潮湿 |
|---|
| WGK Germany | 3 |
|---|---|
| RTECS | RF0750000 |
| 个人防护装备 | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
首页
400-620-6333
危险品化学品经营许可证（带存储）