相关实验视频

Updated: Jun 24, 2025

Synthesis of Wavelength-shifting DNA Hybridization Probes by Using Photostable Cyanine Dyes

Synthesis of Wavelength-shifting DNA Hybridization Probes by Using Photostable Cyanine Dyes

Published on: July 6, 2016

大型斯托克斯转移DNA染料的设计和合成,具有降低的基因毒性

Xiaofeng Rao¹, Kai Zhou¹, Jingyu Tu¹

¹Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, Guangdong, 518038, China.

Biochemical and biophysical research communications

|June 8, 2024

概括

新的色剂提供更安全,高性能的DNA染色. 这些新型化合物表现出巨大的斯托克斯转移和降低毒性,为分子生物学研究提供了更好的替代方案.

科学领域:

有机化学有机化学
分子生物学分子生物学
生物物理化学生物物理化学

背景情况:

具有较大的斯托克斯转移的小分子DNA光染料是罕见的,通常有毒的.
现有的DNA染料带来了安全问题,限制了它们的广泛应用.

研究的目的:

设计和合成新的,无毒的,小分子DNA光染料,具有大的斯托克斯转移.
为现有的高性能DNA染色剂开发更安全的替代品.

主要方法:

使用 thiazole-benzimidazole 支架和 pyrazole 环的本齐米达衍生物的设计.
量子化学计算用于属性预测.
新型光染料候选物的合成和验证.
评估DNA染色强度,检测极限,细胞透性和突变性.

主要成果:

合成了具有 thiazole-benzimidazole 框架的新型本齐米达衍生物.
这些化合物表现出很大的斯托克斯移位 (135-143纳米) 和辐射颜色变化.
观察到改善的DNA染色强度和较低的检测极限.
设计的染料显示没有细胞膜透,可忽略不计的变种效应.

结论:

这种基于本齐米达的光染料是有效的DNA特异性染料,具有很大的斯托克斯移位.
这些染料代表了对现有的有毒DNA光探针更安全的替代方案.
开发的化合物有望用于先进的分子生物学和诊断应用.

关键词:

染色的DNA染色方式光探测器探测器可以发光.基因毒性基因毒性大斯托克斯转移转移.铁 - 西米达二醇

更多相关视频

DNA Electrophoresis Using Thiazole Orange Instead of Ethidium Bromide or Alternative Dyes

DNA Electrophoresis Using Thiazole Orange Instead of Ethidium Bromide or Alternative Dyes

Published on: March 31, 2019

DNA Staining Method Based on Formazan Precipitation Induced by Blue Light Exposure

DNA Staining Method Based on Formazan Precipitation Induced by Blue Light Exposure

Published on: January 28, 2018

相关概念视频

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...

Labeling DNA Probes

Labeling DNA Probes

DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...

Karyotyping

Karyotyping