keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year
TNP-GTP是一种荧光衍生物,源自蛋白质合成与糖异生的能量底物鸟苷三磷酸(GTP)。其在水中激发波长为410 nm时,发射最大波长为552 nm,而在40%和80%的N,N-二甲基甲酰胺中,其荧光强度增加,发射波长分别向544 nm和532 nm移动,这是因为N,N-二甲基甲酰胺的极性比水小。TNP-GTP是谷氨酸脱氢酶的抑制剂(Ki = 2.7 μM)。当与谷氨酸脱氢酶结合时,TNP-GTP的荧光强度增加,且发射波长从552 nm变为545 nm,此效果可以通过加入GTP来阻断。TNP-GTP还是嘌呤P2X2和P2X2/3受体的拮抗剂(IC50s分别为0.4和1.2 nM)。它还选择性抑制大鼠可溶性鸟苷酸环化酶(sGC; Ki = 11 nM)高于牛肝谷氨酸脱氢酶(GDH; Ki = 2.7 µM)以及钙调素依赖的B. pertussis腺苷酸环化酶(AC)毒素(Kis在存在锰或镁时分别为20和320 µM)。
产品描述 | TNP-GTP, a fluorescent derivative of guanosine 5'-triphosphate (GTP), essential for protein synthesis and gluconeogenesis, exhibits an emission peak at 552 nm when excited at 410 nm in water. Its fluorescence intensity increases and emission peaks shift to 544 nm and 532 nm in 40% and 80% N,N-dimethylformamide, respectively, due to the solvent's lower polarity compared to water. As a potent inhibitor of glutamate dehydrogenase (Ki = 2.7 μM), TNP-GTP enhances fluorescence and shifts its emission to 545 nm upon binding to this enzyme, a process reversible by GTP addition. Additionally, it serves as an antagonist to purinergic P2X2 and P2X2/3 receptors (IC50s = 0.4 and 1.2 nM, respectively) and selectively inhibits rat soluble guanylyl cyclase (sGC; Ki = 11 nM) over bovine liver glutamate dehydrogenase (GDH; Ki = 2.7 µM) and the calmodulin-dependent B. pertussis adenylyl cyclase (AC) toxin, with inhibition constants of 20 µM and 320 µM in the presence of manganese and magnesium, respectively. |
别名 | TNP-Guanosine 5'-triphosphate |
分子量 | 822.20 |
分子式 | C16H13N8O20P3.4Na |
keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year
H2O: Soluble
对于不同动物的给药剂量换算,您也可以参考 更多...
请在以下方框中输入您的动物实验信息后点击计算,可以得到母液配置方法和体内配方的制备方法: 比如您的给药剂量是10 mg/kg,每只动物体重20 g,给药体积100 μL,一共给药动物10 只,您使用的配方为5% DMSO+30% PEG300+5% Tween 80+60% ddH2O。那么您的工作液浓度为2 mg/mL。
母液配置方法:2 mg 药物溶于 50 μL DMSO (母液浓度为 40 mg/mL), 如您需要配置的浓度超过该产品的溶解度,请先与我们联系。
体内配方的制备方法:取 50 μL DMSO 主液,加入 300 μL PEG300, 混匀澄清,再加 50 μL Tween 80,混匀澄清,再加 600 μL ddH2O, 混匀澄清。
您可能有的问题的答案可以在抑制剂处理说明中找到,包括如何准备库存溶液,如何存储产品,以及基于细胞的分析和动物实验需要特别注意的问题。
TNP-GTP sodium TNP-Guanosine 5'-triphosphate Inhibitor inhibitor inhibit