HyCas9-12aGEP:一个高效的基因组编辑平台用于Corynebacterium glutamicum
Feng Zhang1, Jin-Yu Wang1, Chang-Lon Li1
1The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China.
Frontiers in bioengineering and biotechnology
|March 27, 2024
概括
一个新的混合CRISPR-Cas9-Cas12a基因组编辑平台 (HyCas9-12aGEP) 增强了Corynebacterium glutamicum的基因组重编程. 该工具提高了编辑分辨率和效率,优于现有的CRISPR技术.
科学领域:
- 微生物学 微生物学
- 分子生物学分子生物学
- 生物技术是生物技术.
背景情况:
- 科里尼细菌 (Corynebacterium glutamicum) 是一个重要的工业代谢物生产者.
- 在C. glutamicum中现有的CRISPR-Cas9和CRISPR-Cas12a技术在编辑分辨率和效率方面存在局限,原因是引导RNA的变异性.
研究的目的:
- 开发一种新的混合CRISPR-Cas9-Cas12a基因组编辑平台 (HyCas9-12aGEP) 用于C. glutamicum.
- 为了提高基因组编辑的分辨率和效率在C. glutamicum.
主要方法:
- 在HyCas9-12aGEP框架内,sgRNA,crRNA或合hfgRNA的共同表达.
- 利用该平台绘制活跃导向RNA的地图,并确定对观察到的表型负责的基因型.
主要成果:
- 与独立的CRISPR-Cas9和CRISPR-Cas12a相比,HyCas9-12aGEP显示出更高的基因组编辑分辨率和效率.
- 该平台通过分析40多个基因,成功地确定了意想不到的表型的遗传基础.
结论:
- HyCas9-12aGEP显著提高了C. glutamicum的基因组重编程能力.
- 该平台为工业微生物学中的基因工程应用提供了更高的精度和效率.
相关概念视频
CRISPR
50.8K
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
50.8K
Conservative Site-specific Recombination and Phase Variation
6.0K
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...
6.0K


