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MarkerGeneTM M0877 GUS報(bào)告基因活性檢測試劑盒(熒光法)
發(fā)布時(shí)間: 2019-3-26 13:43:31

MarkerGeneTM Glucuronidase (GUS) Reporter GeneActivity Detection Kit

背景描述:

       報(bào)告基因普遍用做“標(biāo)志物 Markers”對基因調(diào)控和定位分析,以及突變基因分析。通過免疫實(shí)驗(yàn),生化活性或組織化學(xué)分析來對組織或細(xì)胞的報(bào)告基因表達(dá)進(jìn)行檢測。

       大腸桿菌來源的β-葡萄糖苷酶(β-glucuronidase,GUS)普遍認(rèn)為是轉(zhuǎn)基因植物研究中非常理想的報(bào)告基因(marker gene)。GUS報(bào)告基因系統(tǒng)具有許多優(yōu)勢,包括穩(wěn)定表達(dá)大腸桿菌GUS,不會干擾正常植物代謝和高等植物內(nèi)幾乎無內(nèi)源性GUS活性。

數(shù)種葡萄糖醛酸底物可用來檢測GUS表達(dá),這些底物都包含糖基D-葡萄糖醛酸苷(D-glucopyranosiduronic acid)通過糖苷鍵連接到生色底物、熒光底物或其他檢測分子的—OH。體外用于GUS活性檢測的最廣泛使用的熒光底物為MUG(4-Methylumbelliferyl beta-D-glucuronide,4-甲基傘型酮-beta-D-葡糖苷酸,CAS:6160-80-1或881005-91-0)。一旦被水解,生成熒光素4-MU(4-甲基傘型酮)和β-D-葡萄糖醛酸。

 

檢測原理:

本MarkerGeneTM GUS報(bào)告基因活性檢測試劑盒(MarkerGeneTM Glucuronidase(GUS) Reporter Gene Activity Detection Kit)以MUG為熒光顯色底物。當(dāng)植物或其他細(xì)胞用GUS萃取液(含磷酸-EDTA,pH 7.0和去污劑)萃取后,所得到的萃取液(含GUS)能水解4-MUG生成4-MU(4-甲基傘型酮,pKa 8.2)和β-D-葡萄糖醛酸。加入碳酸鈉緩沖液終止該反應(yīng)(因4-MU在pH值高于pKa的情況下發(fā)射最大熒光信號)。4-MU的最大激發(fā)波長為365nm,最大發(fā)射波長為455nm。

試劑盒組分:

組分名稱

組分編號

規(guī)格

保存

GUS Extraction Buffer

0877-001

25 mL

Store cold (4℃)

Carbonate Stop Buffer 

0877-002

25 mL

Store cold (4℃)

GUS Assay Buffer

0877-003

5 mL

Store cold (4℃)

4-MU calibration stock solution

0877-004

5 mL

Store cold (4℃)


訂購信息:

貨號

產(chǎn)品名稱

規(guī)格

價(jià)格(元)

M0877

MarkerGene? β-Glucuronidase (GUS) Reporter Gene Activity Detection Kit

1Kit

5680.00

使用文獻(xiàn)(MarkerGene? β-Glucuronidase(GUS) Reporter Gene Activity Detection Kit):

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