Product Name | BSB[(trans,trans) - 1 - Bromo - 2,5 - bis - (3 - hydroxycarbonyl - 4 - hydroxy)styrylbenzene] |
Size | 5 mg |
Catalog # | AS-88300 |
US$ | $125 |
BSB, derived from the structure of Congo Red, is shown to bind to a wide range of amyloid inclusions in situ. More importantly it is also used to label brain amyloids in live animals. BSB recognizes amyloid lesions, and has distinctive properties which allow the quantitative monitoring of the formation of amyloid fibrils assembled from the Ab peptide, a-synuclein and tau. It is a cell-permeable fluorescent probe that specifically binds to and labels intracellular b-amyloid aggregates both in vitro (Ki = 400 nM) and in vivo. It is also used as an antemortem diagnostic tool for animal models of Alzheimers disease. | |
Detailed Information | Material Safety Data Sheets (MSDS) |
Storage | -20°C desiccated and protected from light |
References | 1. Crystal AS, et al. (2003).J Neurochem 86, 1359-68. 2. Kung MP, et al. (2002).J Mol Neurosci 19, 7-10. |
Molecular Weight | 481.292 |
Molecular Formula | C24H17BrO6 |
Spectral Properties | Abs/Em = 340/520 nm |
Solvent System | DMSO |
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建立稳定细胞株,一般是根据不同基因载体中所含有的抗性标志选用相应的药物对靶...专注整体实验·服务生命科学已开展了数千个实验外包项目
一种是脂质体转染后,单克隆筛选稳定细胞株.另外一种是应用逆转录病毒,慢病毒转染,筛选稳定细胞株.
脂质体转染:在转染24小时后,消化细胞并计数.将细胞种到96孔板,保证每个孔2-3个细胞,这样才能得到单克隆.待细胞贴壁后,加入抗生素筛选.筛选时间和浓度视细胞而定.一般G418一个星期作用,嘌呤霉素2-3天.
脂质体法筛单克隆时间较长,且效率低,大概只有1%.
病毒转染:先要用包装细胞,一般为293细胞,包装出病毒,再用病毒转染目的细胞.包装病毒视不同类型的病毒而定,一般要3-5天的时间.包装好的病毒要测滴度,根据滴度决定转染目的细胞的病毒量.转染目的细胞1-2天后加抗生素筛选得到稳定细胞株.
病毒转染得到稳定细胞株的效率高,只是步骤繁琐.
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