Contents | BrdU Reagent,Fixing SolutionPrediluted Anti-BrdU DetectorPeroxidase Goat Anti-Mouse IgGConjugate DiluentSubstrate50X Plate Wash ConcwentrateStop Solution |
---|---|
Application | BrdU Cell Proliferation Assay |
BrdU Proliferation Assay involves incorporation of BrdU into cells cultured in microtiter plates using the cell layer as the solid phase. During the final 2 to 24 hours of culture BrdU is added to wells of the microtiter plate. BrdU will be incorporated into the DNA of dividing cells. To enable antibody binding to the incorporated BrdU cells must be fixed, permeabilized and the DNA denatured. This is all done in one step by treatment with Fixing Solution. Detector anti-BrdU monoclonal antibody is pipetted into the wells and allowed to incubate for one hour, during which time it binds to any incorporated BrdU. Unbound antibody is washed away and horseradish peroxidase-conjugated goat anti-mouse antibody is added, which binds to the Detector Antibody.
The horseradish peroxidase catalyzes the conversion of the chromogenic substrate tetra-methylbenzidine (TMB) from a colorless solution to a blue solution (or yellow after the addition of stopping reagent), the intensity of which is proportional to the amount of incorporated BrdU in the cells. The colored reaction product is quantified using a spectrophotometer.
ebiomall.com
>
>
>
>
>
>
>
>
>
>
>
>
1、如果是提取的总蛋白,然后做WB,用β-actin或者GAPDH做内参肯定是没有问题的,这是公认的东西。
2、如果用膜蛋白提取试剂盒提取蛋白,再用β-actin作为内参似乎不妥,因为理论上来讲β-actin在膜上是不表达的。WB能做出β-actin来是因为膜蛋白提取时把胞质蛋白也提出来了。然而,如果我们试验目的是用药物处理细胞,比较处理前后某种膜蛋白的表达情况,此时用膜蛋白提取试剂盒提取膜蛋白后再用β-actin做内参似乎就不妥了,因为你根本不知道药物处理前后混杂了多少的胞质蛋白进来。如果没有胞质蛋白混进去的话,β-actin就是检测不到的。
1. 使用预染 Marker,不过分子量不是特别准;
2. 所使用的 Marker 条带与待测蛋白质带有相同的抗原表位,比如都带有 His 融合标签;
3. 可以使用普通的 Marker 转膜使用 丽春红 等染色,然后在膜上标记出 Marker 各条带的位置。
考马斯亮兰染液也可以重复用。新配的染液10分钟即可,重复3次后要染30分钟。
一抗二抗可以重复利用,但是注意要在5%milk中加入0.2% sodium azide ,并且用完以后放入4度保存,我的经验重复使用4-5次是肯定没有问题的.如果保存不当,就会污染微生物,只能丢弃.
取名尿素。尿素含氮46%,是固体氮肥中含氮量最高的。尿素在酸、碱、酶作用下(酸、碱需加热)能水解生成氨和二氧化碳。希望我能帮助你解疑释惑。
暂无品牌问答