DNA 原始化:一种评估和利用转录因子的工具
Alexios-Fotios A Mentis1, Kostas A Papavassiliou2, Athanasios G Papavassiliou3
1BGI-Shenzhen, Shenzhen, Guangdong, China.
概括
合成生物学,特别是DNA原形,提供了研究和治疗向转录因子 (TFs) 的新方法,这些因子参与基因调节和疾病. 这种DNA纳米技术方法增强了TF研究和药物设计,用于以前无法治疗的疾病.
科学领域:
- 分子生物学分子生物学
- 合成生物学 合成生物学
- 纳米技术 纳米技术
背景情况:
- 转录因子 (TFs) 是基因表达的关键调节者,影响细胞过程,如生长,分化和对刺激的反应.
- 尽管进行了广泛的研究,但由于传统药物开发方法的困难,许多TF仍然是具有挑战性的治疗目标.
- 现有的基因调节研究往往忽视了TFs的动态作用和治疗潜力.
研究的目的:
- 探索合成生物学和医学的应用,特别是DNA原形,用于研究和向转录因子.
- 突出DNA原形的独特特性,如可编程性和可编辑性,作为TF研究中有利的工具.
- 通过使用DNA原始技术,为FT相关疾病提出新的治疗策略.
主要方法:
- 转录因子功能的概述及其在细胞过程中的作用.
- 介绍DNA原形作为一种合成DNA纳米技术方法.
- 应用DNA原形来研究TF动力学,阐明新型核酸和向瘤基因促进体.
主要成果:
- 在TF研究中,DNA原形利用了DNA固有的特性 (聚合,互补,可编程,可编辑).
- 在分析转录过程中的TF动态时,证明了DNA原始体的潜力.
- 在研究异核酸和使用TFs作为竞争对手在癌基因参与促进体中的应用中确定了应用.
结论:
- 基因原形呈现了一个强大的合成生物学工具,用于推进转录因子的研究.
- 这种纳米技术为针对TF的新药设计提供了有前途的途径,解决了传统方法的局限性.
- 未来的方向包括RNA原始化和基于DNA原始化的创新治疗传递系统,用于增强治疗策略.
相关概念视频
Transcription Factors
76.0K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
76.0K
General Transcription Factors
5.3K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
5.3K
Co-activators and Co-repressors
7.4K
Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
7.4K
RNA Polymerase II Accessory Proteins
9.2K
Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...
9.2K
Cooperative Binding of Transcription Regulators
6.5K
Transcriptional regulators bind to specific cis-regulatory sequences in the DNA to regulate gene transcription. These cis-regulatory sequences are very short, usually less than ten nucleotide pairs in length. The short length means that there is a high probability of the exact same sequence randomly occurring throughout the genome. Since regulators can also bind to groups of similar sequences, this further increases the chances of random binding. Transcriptional regulators form...
6.5K
Eukaryotic Transcription Activators
11.1K
Transcription activators are proteins that promote the transcription of genes from DNA to RNA. In most cases, these proteins contain two separate domains ‒ a domain that binds to DNA and a domain for activating transcription; however, in some cases, a single domain is responsible for both binding and activation of transcription, as seen in the glucocorticoid receptor and MyoD.
The binding domains are capable of recognizing and interacting with regulatory sequences on the DNA. These...
The binding domains are capable of recognizing and interacting with regulatory sequences on the DNA. These...
11.1K


