中文名:異丙基-β-D-硫代半乳糖苷(IPTG)
英文名:Isopropyl beta-D-thiogalactoside
中文別名:異丙基1-硫代-β-D-半乳糖吡喃糖苷
英文別名:Isopropyl 1-Thio-β-D-galactopyranoside
純度:>98.0%
貨號(hào):I104812
包裝:100g、25g、5g
Cas號(hào):367-93-1
存儲(chǔ)溫度:2-8°C儲(chǔ)存,充氬
產(chǎn)品介紹:
IPTG, Dioxane-Free (isopropyl-β-thiogalactoside) is an analogue of allolactose that binds specifically to the repressor protein of the lac operon and induces expression of β-galactosidase in Escherichia coli. The compound is widely used with X-Gal plates to screen for blue and white colonies. The lac operon system and IPTG have been used in multiple cloning experiments and cellular systems to study gene activity.IPTG 常用于需要誘導(dǎo) β-半乳糖苷酶活性的克隆實(shí)驗(yàn)。它常與 X-Gal 或 Bluo-Gal 結(jié)合使用,用于重組細(xì)菌菌落的藍(lán)白篩選,這些菌落可以誘導(dǎo) lac 操縱子在大腸桿菌中的表達(dá)。IPTG 與 lacI 阻遏蛋白結(jié)合并改變其構(gòu)象而發(fā)揮作用,防止 β-半乳糖苷酶編碼基因 lacZ 的抑制。
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