DFHBI-1T 是一种可透过膜的 RNA 适配体激活的荧光探针 (ex/em=472 nm/507 nm)。DFHBI-1T 与 RNA 适配体 (Spinach, Spinach2, iSpinach, Broccoli) 结合并产生特定的荧光和较低的背景荧光。DFHBI-1T 可以用于活细胞中的 RNA 成像。
生物活性 | DFHBI-1T is a membrane-permeable RNA aptamers-activated fluorescence probe (ex/em=472 nm/507 nm). DFHBI-1T binds to RNAaptamers(Spinach, Spinach2, iSpinach, and Broccoli) and causes specific fluorescence and lower background fluorescence. DFHBI-1T is used to image RNA in live cells[1][2]. |
体外研究 (In Vitro) | DFHBI-1T (20 μM; for 10 min) increases fluorescence in COS7 cells expressing (CGG)60-Spinach2 over DFHBI (20 μM)[1]. Broccoli-DFHBI-1T has ex/em=472 nm/507 nm and Spinach2-DFHBI-1T has ex/em=482 nm/505 nm[2].
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Emission (Em) | Em 495-570 nm Green |
Excitation (Ex) | Ex 450-495 nm Blue |
运输条件 | Room temperature in continental US; may vary elsewhere. |
储存方式 | -20°C, protect from light *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light) |
溶解性数据 | In Vitro: DMSO : 50 mg/mL(156.15 mM;Need ultrasonic) 配制储备液 1 mM | 3.1230 mL | 15.6148 mL | 31.2295 mL | 5 mM | 0.6246 mL | 3.1230 mL | 6.2459 mL | 10 mM | 0.3123 mL | 1.5615 mL | 3.1230 mL |
*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。 储备液的保存方式和期限:-80℃, 6 months; -20℃, 1 month (protect from light)。-80℃ 储存时,请在 6 个月内使用,-20℃ 储存时,请在 1 个月内使用。 In Vivo: 请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照In Vitro方式配制澄清的储备液,再依次添加助溶剂: ——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用;
以下溶剂前显示的百 分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶 1. 请依序添加每种溶剂: 10% DMSO 40%PEG300 5%Tween-80 45% saline Solubility: 5.5 mg/mL (17.18 mM); Suspended solution; Need ultrasonic
此方案可获得 5.5 mg/mL (17.18 mM) 的均匀悬浊液,悬浊液可用于口服和腹腔注射。 以 1 mL 工作液为例,取 100 μL 55.0 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。 *以上所有助溶剂都可在本网站选购。
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染色示例 | Description: DFHBI-1T can be used for RNA imaging in living cells.Method: For cell staining.1. Wash cells by PBS and fix with 4% paraformaldehyde.2. Samples are mounted onto slides using DFHBI-1T (20 mM) and using a laser confocal microscope (Leica TCS SP8) for image. Description: DFHBI-1T can be used as a cell-permeable fluorophore to bind with RNA aptamers (spinach, broccoli, dBroccoli and F30).Method: For cell labeling in F30 expression system.1. Incubate cells with DFHBI-1T (20 μM; 10 min; 37℃).2. Wash cells for three times with 1×PBS and use a Leica SP8 microscope (Leica Microsystems) for image.
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