相关实验视频

Updated: Jun 24, 2026

Generation of Plasmid Vectors Expressing FLAG-tagged Proteins Under the Regulation of Human Elongation Factor-1α Promoter Using Gibson Assembly

Generation of Plasmid Vectors Expressing FLAG-tagged Proteins Under the Regulation of Human Elongation Factor-1α Promoter Using Gibson Assembly

Published on: February 9, 2015

在Corynebacterium glutamicum中进行单步多片段组装和有针对性的基因组集成

Xiaoyu Wang^1,2, Siqi Yang¹, Xiaojie Zhou^1,2

¹Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China.

ACS synthetic biology

|March 7, 2026

概括

研究人员使用ReCET系统优化了Corynebacterium glutamicum中的DNA集成,并开发了一步多片段组装集成 (OMAI) 战略,以快速,大片段插入.

科学领域:

合成生物学合成生物学
代谢工程是代谢工程.
微生物生物技术微生物生物技术

背景情况:

谷氨酸菌 (Corynebacterium glutamicum) 是一种重要的工业微生物,用于生产像氨基酸这样的有价值化学物质.
在C. glutamicum中有效地整合大型DNA片段对于代谢工程至关重要,但目前具有挑战性.
现有的大型DNA集成方法往往是低效的或劳动密集型的.

研究的目的:

优化一个ReCET变体辅助的同源重组系统,以便在C. glutamicum中高效地整合大型DNA片段.
开发一种新的策略,即一步式多片段组装集成 (OMAI),以进一步提高DNA集成的尺寸限制.
建立一种快速有效的基因工程C. glutamicum的方法.

主要方法:

一个Recet变异辅助同源重组系统的优化.
开发一阶段多片段组装集成 (OMAI) 战略,使用重叠的PCR片段的共同转换.
在体内组装和整合多个DNA片段.

主要成果:

实现了大于11.3kb的DNA片段的单步集成.
通过OMAI策略,可以整合异质序列,其长度大约比传统的单片段限制长50%.
每个OMAI编辑周期都在3天内完成,证明了快速插入大片段的方法.

结论:

优化的Recet系统和OMAI策略显著提高了C. glutamicum中大DNA片段集成的效率和速度.
OMAI代表了C. glutamicum工程的突破,使得可以引入更大的遗传元素来增强生物生产.
这种快速方法预计将加速C. glutamicum的代谢工程工作,用于工业应用.

关键词:

科里尼细菌,基因组编辑一步式多片段组装集成 (OMAI)与RAGATH相关的DNA核酶 (RAD) 是一种这是RecetET的回报.

更多相关视频

Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning

Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning

Published on: February 5, 2021

Genome-wide Profiling of Transcription Factor-DNA Binding Interactions in Candida albicans: A Comprehensive CUT&RUN Method and Data Analysis Workflow

Genome-wide Profiling of Transcription Factor-DNA Binding Interactions in Candida albicans: A Comprehensive CUT&RUN Method and Data Analysis Workflow

Published on: April 1, 2022

相关概念视频

Genome Annotation and Assembly

Genome Annotation and Assembly

The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.