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死细胞核染料 TWO-PRO 3 相当于TO-PRO 3 CAS 157199-63-8

英文名称:TWO-PRO™ 3 [equivalent to TO-PRO®-3] *5 mM DMSO Solution* *CAS 157199-63-8*
产品参数
Ex (nm)642Em (nm)657
分子量671.42溶剂DMSO
存储条件在零下15度以下保存, 避免光照
产品概述

TWO-PRO -3 是一种化学成分与 TO-PRO®-3 相同的染料,后者是 Invitrogen 公司的注册商标。TWO-PRO™-3 是一种具有类似于 Cy® 5 染料的远红外荧光的碳氰化合物二聚体。它不易穿透细胞膜,因此可以清晰地与荧光素和罗丹明类染料区分开来,用作核酸对照染色和死细胞指示剂。在没有核酸的情况下它不会发光,但与 DNA 结合后会产生非常明亮的荧光信号。TWO-PRO™-3 在培养细胞和石蜡切片中提供强烈且选择性的核染色。同时使用能穿透细胞的 Nuclear Green™ LCS1 染料和不能穿透细胞的 TWO-PRO™-3 可以用来评估细胞的活性。TWO-PRO™-3 和 Nuclear Green™ 的消光系数远高于与 DNA 结合的碘化丙啶。

点击查看光谱

 

适用仪器


荧光显微镜  
Ex: Cy5滤波片
Em: Cy5滤波片
推荐孔板: 黑色壁/透明底

 

溶解方案(溶剂以说明书为准)

  0.1 mg 0.5 mg 1 mg 5 mg 10 mg
1 mM 148.938 µL 744.69 µL 1.489 mL 7.447 mL 14.894 mL
5 mM 29.788 µL 148.938 µL 297.876 µL 1.489 mL 2.979 mL
10 mM 14.894 µL 74.469 µL 148.938 µL 744.69 µL 1.489 mL
实验方案

样品实验方案

工作溶液配制

TWO-PRO -3 工作溶液

在含20 mM Hepes缓冲的Hanks缓冲液(HH缓冲液)或您选择的其他缓冲液中,制备TWO-PROTM-3的工作液。

注意:在初始实验中,最好尝试几种染料浓度以确定产生结果的最佳浓度。高染料浓度往往会导致其他细胞结构的非特异性染色。

 

操作步骤

注意:以下实验步骤可用于大多数细胞类型。生长基质、细胞密度、其他细胞类型及生长因子的存在可能会影响染色效果。玻璃容器上残留的洗涤剂也可能影响许多组织的染色,并会使溶液中含有或不含细胞都出现强烈荧光物质。

1.根据需要培养和处理细胞。

2.除去细胞培养基。

3.将 TWO-PRO-3 工作溶液(1 至 10 µM)添加到细胞(悬浮细胞或贴壁细胞)中,并将细胞染色 15 至 60 分钟。

4.除去染料工作溶液并添加 HH 缓冲液或您选择的缓冲液。

5.使用 Cy5 滤光片通过荧光显微镜分析细胞染色。

 

试剂应用文献

Synergistic Activity and Mechanism of Sanguinarine with Polymyxin B against Gram-Negative Bacterial Infections
Authors: Qiao, Luyao and Zhang, Yu and Chen, Ying and Chi, Xiangyin and Ding, Jinwen and Zhang, Hongjuan and Han, Yanxing and Zhang, Bo and Jiang, Jiandong and Lin, Yuan
Journal: Pharmaceutics (2024): 70
 
A lysosomal regulatory circuit essential for the development and function of microglia
Authors: Iyer, Harini and Shen, Kimberle and Meireles, Ana M and Talbot, William S
Journal: Science advances (2022): eabp8321

 

参考文献

Daptomycin exerts rapid bactericidal activity against Bacillus anthracis without disrupting membrane integrity
Authors: Xing YH, Wang W, Dai SQ, Liu TY, Tan JJ, Qu GL, Li YX, Ling Y, Liu G, Fu XQ, Chen HP.
Journal: Acta Pharmacol Sin (2014): 211
 
Quantification of Candida albicans by flow cytometry using TO-PRO((R))-3 iodide as a single-stain viability dye
Authors: Kerstens M, Boulet G, Pintelon I, Hellings M, Voeten L, Delputte P, Maes L, Cos P.
Journal: J Microbiol Methods (2013): 189
 
A silicon cell cycle in a bacterial model of calcium phosphate mineralogenesis
Authors: Linton KM, Tapping CR, Adams DG, Carter RD, Shore RC, Aaron JE.
Journal: Micron (2013): 419
 
Pulsed electromagnetic field affects intrinsic and endoplasmatic reticulum apoptosis induction pathways in MonoMac6 cell line culture
Authors: Kaszuba-Zwoinska J, Chorobik P, Juszczak K, Zaraska W, Thor PJ.
Journal: J Physiol Pharmacol (2012): 537
 
Determination of the drug-DNA binding modes using fluorescence-based assays
Authors: Williams AK, Dasilva SC, Bhatta A, Rawal B, Liu M, Korobkova EA.
Journal: Anal Biochem (2012): 66
 
Transient changes in neuronal cell membrane permeability after blast exposure
Authors: Arun P, Abu-Taleb R, Valiyaveettil M, Wang Y, Long JB, Nambiar MP.
Journal: Neuroreport (2012): 342
 
A comparison of TO-PRO-1 iodide and 5-CFDA-AM staining methods for assessing viability of planktonic algae with epifluorescence microscopy
Authors: Gorokhova E, Mattsson L, Sundstrom AM.
Journal: J Microbiol Methods (2012): 216
 
SOCS-3 antagonizes pro-apoptotic effects of TRAIL and resveratrol in prostate cancer cells
Authors: Horndasch M, Culig Z.
Journal: Prostate (2011): 1357
 
The fluorescent dyes TO-PRO-3 and TOTO-3 iodide allow detection of microbial cells in soil samples without interference from background fluorescence
Authors: Henneberger R, Birch D, Bergquist P, Walter M, Anitori RP.
Journal: Biotechniques (2011): 190
 
Preclinical evaluation of novel triphenylphosphonium salts with broad-spectrum activity
Authors: Millard M, Pathania D, Shabaik Y, Taheri L, Deng J, Neamati N.
Journal: PLoS One (2010)