自组装的水溶性核酸探针用于无标签的RNA杂交试验
Yonggang Ke1, Stuart Lindsay, Yung Chang
1Center for Single Molecule Biophysics, Arizona State University, Tempe, AZ 85287, USA.
概括
DNA原始技术为纳米研究创造了新的核酸探针. 这些分子工具使无标签的RNA检测和DNA杂交事件的精确量化成为可能.
科学领域:
- 分子生物学分子生物学
- 纳米技术纳米技术
- 生物化学 生物化学
背景情况:
- 基因原形使得精确的纳米结构制造成为可能.
- 宏观DNA芯片在分辨率和多重复合方面面临限制.
- 开发用于高通量生物测试的分子类型至关重要.
研究的目的:
- 使用DNA原创创新的核酸探针.
- 为了研究纳米级杂交动力学.
- 为了实现无标签的RNA检测.
主要方法:
- 通过DNA原创制作制造了数万亿个核酸探针.
- 探头的设计具有特定的DNA探头序列.
- 在溶液中和在表面进行混合化试验.
- 原子力显微镜用于结合事件量化.
主要成果:
- 成功创建了DNA芯片的分子类型.
- 在纳米尺度上展示了位置依赖的杂交.
- 实现了对RNA的无标签检测.
- 通过AFM对结合事件的量化,原因是杂交后的度增加.
结论:
- 基因原形是创建功能纳米级核酸结构的强大方法.
- 核酸探针为研究分子相互作用提供了一个多功能平台.
- 这项技术可以对RNA和其他核酸进行敏感且无标签的检测.
相关概念视频
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...
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...
In-situ Hybridization
In situ hybridization (ISH) is a technique used to detect and localize specific DNA or RNA molecules in cells, tissue, or tissue sections using a labeled probe. The technique was first used in 1969 for the investigation of nucleic acids. It is currently an essential tool in scientific research and clinical settings, especially for diagnostic purposes.
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
RNA-seq
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...


