化学性质
属性
存贮条件
储存温度2-8℃
描述
产品介绍
Deoxyribonuclease II from porcine spleen has a molecular weight of 38 kDa. The enzyme is a glycoprotein endonuclease with dimeric structure. Optimum pH range is 4.5-5.0 at ionic strength 0.15 M. Deoxyribonuclease II (Acid DNase) hydrolyzes deoxyribonucleotide linkages in native and denatured DNA yielding products with 3'-phosphates. It also acts on p-nitrophenylphosphodiesters at pH 5.6-5.9. Bernardi (BBRC, 17, 573, 1971) describes a three stage degradation of native DNA by DNase II.
别名
;DNase II;Deoxyribonucleate 3′-oligonucleotido-hydrolase
生化机理
The enzyme is a lysosomal acid hydrolase that hydrolyzes DNA to 3′-phosphoryl oligonucleotides in the absence of metal ions, under acidic conditions. It is a non-covalently linked α·β heterodimer of approximately 45,000 Da molecular mass.
备注
A dialyzed, lyophilized powder.
应用
DNase II has been used to treat transformed cells during the purification of β-lactamase. It has also been used for the preparation of adenoma tissue in a study that investigated the effect of somatoprim on growth hormone secretion in human adenoma cell cultures (hSA).Deoxyribonuclease II from bovine spleen has been used in a study that conducted a partial purification of deoxyribonucleases from eggs and liver of Xenopus laevis. Deoxyribonuclease II from bovine spleen has also been used in a study to investigate nucleic acid and protein synthesis of splenic lymphocytes.
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储存条件 :
-20° C密闭,避光,通风干燥处
稳定性 :
Unit Definition One Kunitz unit will produce a ΔA260 of 0.001 per min per mL at pH 4.6 at 25 ° C; Mg2+ = 0.83 mM
更多 :
1. 性状:低冻状粉末。
2. 密度(g/mL,25℃):未确定
3. 相对蒸汽密度(g/mL,空气=1):未确定
4. 熔点(℃):未确定
5. 沸点(℃,常压):未确定
6. 沸点(℃,5.2kPa):未确定
7. 折射率:未确定
8. 闪点(℃):未确定
9. 比旋光度(º ):未确定
10. 自燃点或引燃温度(℃):未确定
11. 蒸气压(kPa,20℃):未确定
12. 饱和蒸气压(kPa,60℃):未确定
13. 燃烧热(KJ/mol):未确定
14. 临界温度(℃):未确定
15. 临界压力(KPa):未确定
16. 油水(辛醇/水)分配系数的对数值:未确定
17. 爆炸上限(%,V/V):未确定
18. 爆炸下限(%,V/V):未确定
19. 溶解性:溶于水
危险属性
WGK德国
3
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危险品运输编码 :NONH for all modes of transport
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