英文名稱：Dnase Ⅰ；Deoxyribonuclease I(Bovine pancrease)；Deoxyribonucleate 5′-oligonucleotido-hydrolase
其他名稱：去氧細(xì)胞核酸酶；氧核糖核酸-5ˊ-寡核苷酸水解酶；無核糖核酸酶；脫氧核糖核酸去聚合酶；脫羥核糖核酸酶(牛胰)；除氧細(xì)胞核酸酶(牛胰)；DNA酶
CAS號：9003-98-9
級別：BR
分子量：38KDa
活力：≥300Kunitz U/mg
活力定義：25℃，催化高分子DNA溶液使260nm處吸光度每分鐘增加0.001的酶量為一個活性單位
干燥失重：＜5.0%
熾灼殘?jiān)海?.0%
性狀(以下信息僅供參考)：白色或類白色凍干粉。為雙鏈特異性內(nèi)切核酸酶，能降解雙鏈DNA成為具有5ˊ-磷酸及3ˊ-OH末端的寡脫氧核糖核苷酸。當(dāng)有一價錳離子存在時，亦能降解單鏈DNA。溶于水，微溶于30％乙醇和丙酮。酶反應(yīng)：脫氧核糖核酸→二核苷酸5′磷酸+寡聚核苷酸5′磷酸zui適pH 7.8。吸光系數(shù)(E1%280)11.1。激活劑為二價金屬離子，zui大激活可以從鎂(Mg2+)+鈣(Ca2+)得到。抑制劑有EDTA和十二烷基硫酸鈉。可加5mmol/L鈣(Ca2+)
用途：本品僅供科研，不得用于其它用途。(以下用途僅供參考)用于分子生物學(xué)研究。降解DNA的各種酶。這些酶使糖-磷酸酯主鏈上的磷酸二酯鍵水解。此類酶分為兩種：外切核酸酶和內(nèi)切核酸酶。
保存：-20℃
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