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名称
脱氧核糖核酸酶 I 牛
货号
D755003-500μg
包装规格
500μg
级别
重组
浓度
expressed in Pichia pastoris, buffered aqueous glycerol solution,≥5,000 units/mg protein
产品介绍
来自Sigma的DNAse I在一项研究中用于处理核裂解液以获取单核体。该酶一直被用于小鼠乳腺的制备和收集。牛脱氧核糖核酸酶I已用于一项比较脾脏脱氧核糖核酸酶和胰脱氧核糖核酸酶引发作用的研究中。牛脱氧核糖核酸酶I也已用于研究脱氧胸苷3′、5′-对-对硝基苯基磷酸盐作为牛胰脱氧核糖核酸酶的合成底物。用于从蛋白质样品中除去 DNA。 DNAse I from Sigma was used to treat nuclear lysate to obtain single nucleosomes in a study. The enzyme has also been for the preparation and harvest of mice mammary glands. Deoxyribonuclease I bovine has been used in a study to compare the initial actions of spleen deoxyribonuclease and pancreatic deoxyribonuclease. Deoxyribonuclease I bovine has also been used in a study to investigate deoxythymidine 3′, 5′-di-p-nitrophenyl phosphate as a synthetic substrate for bovine pancreatic deoxyribonuclease. Used for the removal of DNA from protein samples.
生化机理
DNase I是一种内切核酸酶,可作用于磷酸二酯键(与嘧啶相邻)以产生具有末端5′-磷酸的多核苷酸。其最适pH在7和8之间。二价阳离子如Mn 2+ 、Ca 2+ 、Co 2+ 和Zn 2+ 都是酶的活化剂。5 mM浓度的Ca 2+ 可稳定酶免收蛋白水解酶的降解。 已知2-巯基乙醇、螯合剂、十二烷基硫酸钠(SDS) 和肌动蛋白 都可抑制酶的活性。将单链和双链 DNA 消化至携带 5' 的单链和寡核苷酸混合物中磷酸盐和 3′ OH终点。这种催化活性是二价离子依赖性的。在 M 2+ 存在下,DNaseⅠ 随机独立地水解双链 DNA 各链。在 Mn 2+ 存在下,两条链均可裂解。
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Research chemical

Research chemical; supplied for laboratory research, analysis, inspection, and scientific procurement use.

item number:D755003-500μg
Product model:500μg
level: reorganization
Lead Time:30days
sold 865 Items
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500μg

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