在基因工程生物控制中利用DNA修复机制
Joseph S Romanowski1, Christian E Ogaugwu2, Zach N Adelman2
1Interdisciplinary Graduate Program in Genetics and Genomics, United States of America.
Current opinion in insect science
|September 20, 2025
概括
基因驱动提供精确的人口控制,但理解DNA修复途径是关键. 本综述详细介绍了分析基因编辑事件的工具,这些工具对于推进遗传生物控制策略至关重要.
科学领域:
- 遗传学和分子生物学
- 生物技术是生物技术.
- 生物工程是生物工程.
背景情况:
- 基因驱动是一种先进的遗传生物控制策略,有可能快速,精确地改变人口.
- 内生DNA修复途径显著影响基因驱动的有效性,促进或阻碍成功.
- 现有研究主要研究同源重组 (HDR) 和非同源末端连接 (NHEJ) 途径.
研究的目的:
- 审查和突出可用的工具和计算包分析基因编辑事件.
- 解决对预测,检测和分析基因编辑结果在多种DNA修复途径中的改进方法的需求.
- 通过考虑更广泛的DNA修复机制来促进更有效的基因驱动器的设计.
主要方法:
- 科学出版物和生物信息学工具的文献评论.
- 探索用于评估基因编辑事件的计算包和分析方法.
- 基于他们分析的DNA修复途径 (例如,HDR,NHEJ,MMEJ,SSA) 的工具分类.
主要成果:
- 识别所有相关DNA修复途径中分析基因编辑事件的当前局限性.
- 现有的工具和方法适用于基因驱动研究的概述.
- 强调扩大分析能力的必要性,包括微同质-中介末端连接 (MMEJ) 和单链化 (SSA) 等途径.
结论:
- 开发和利用各种分析工具对于优化基因驱动技术至关重要.
- 对包括MMEJ和SSA在内的DNA修复途径的全面理解对于推进遗传生物控制至关重要.
- 进一步开发预测和分析方法将提高未来基因驱动应用的精度和成功.
更多相关视频
08:31Characterizing DNA Repair Processes at Transient and Long-lasting Double-strand DNA Breaks by Immunofluorescence Microscopy
Published on: June 8, 2018
9.6K
06:59Using Next Generation Sequencing to Identify Mutations Associated with Repair of a CAS9-induced Double Strand Break Near the CD4 Promoter
Published on: March 31, 2022
2.8K
相关概念视频
Homologous Recombination
62.7K
The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
62.7K
Overview of DNA Repair
33.4K
In order to be passed through generations, genomic DNA must be undamaged and error-free. However, every day, DNA in a cell undergoes several thousand to a million damaging events by natural causes and external factors. Ionizing radiation such as UV rays, free radicals produced during cellular respiration, and hydrolytic damage from metabolic reactions can alter the structure of DNA. Damages caused include single-base alteration, base dimerization, chain breaks, and cross-linkage.
Chemically...
Chemically...
33.4K
Overview of DNA Repair
9.6K
9.6K
Conservative Site-specific Recombination and Phase Variation
6.7K
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
The recognition sites for Cre recombinase called LoxP...
6.7K
Nucleotide Excision Repair
5.0K
DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
5.0K
Nucleotide Excision Repair
40.6K
Overview
40.6K
