TPE-MI ≥98%
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| 包装规格: | 5mg 10mg 25mg 50mg 100mg in glass bottle |
| 产品简介: | TPE-MI (Tetraphenylethene maleimide) 在通过马来酰亚胺与硫醇结合之前本质上是非荧光的。TPE-MI 荧光在标记游离半胱氨酸硫醇时被激活,该硫醇通常埋在展开时暴露的球状蛋白质的核心中。TPE-MI 可用于测量细胞未折叠蛋白质负荷。TPE-MI 可以报告亨廷顿病诱导多能干细胞模型中的蛋白质平衡失衡,以及在形成可见聚集物之前转染突变亨廷顿外显子1的细胞。TPE-MI 还检测双氢青蒿素研究疟疾寄生虫后的蛋白质损伤。储存方式:避光。 |
| 溶解性: | DMSO :44.15 mg/mL (100.00 mM; Need ultrasonic) |
| 储备液保存: | -80°C, 2 years -20°C, 1 year (protect from light) |
| 体内实验: | 1、请依序添加每种溶剂: 10% DMSO→40% PEG300→5% Tween-80→45% saline Solubility: ≥ 2.5 mg/mL (5.66 mM); Clear solution 此方案可获得 ≥ 2.5 mg/mL (5.66 mM,饱和度未知) 的澄清溶液。 以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。 <1mg/ml表示微溶或不溶。 普西唐提供的所有化合物浓度为内部测试所得,实际溶液度可能与公布值有所偏差,属于正常的批间细微差异现象。 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;⼀旦配成溶液,请分装保存,避免反复冻融造成的产品失效。 |
| 体外研究: | TPE-MI is inherently non-fluorescent until it is conjugated to a thiol via the maleimide. TPE-MI fluorescence is activated upon labelling free cysteine thiols, normally buried in the core of globular proteins that are exposed upon unfolding. TPE-MI (50 µM; 0-60 min) exhibits a homogeneous cytoplasmic labelling pattern in live HeLa cells, with a lower level of labelling in the nucleus and apparent concentration in the region of the ER, which was anticipated as a major location for protein synthesis and folding. At the high expression level, the mutant 97Q form of Httex1 was associated with an elevated TPE-MI fluorescence signal relative to a non-disease-causing 25Q form of Httex1. TPE-MI consists of the aggregation-induced emission (AIE) fluorogen tetraphenylethane (TPE) and the thiol-reactive group maleimide (MI), thereby possessing both AIE phenomenon and selective thiol reactivity. |
| 保存条件: | -20°C |
| 注意事项: | 1、为了您的安全和健康,请穿实验服并戴一次性手套操作。 2、以上信息仅做参考交流之用。 |
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