Genome Engineering of Eubacterium limosum Using Expanded Genetic Tools and the CRISPR-Cas9 System
- Authors
- Shin, Jongoh; Kang, Seulgi; Song, Yoseb; Jin, Sangrak; Lee, Jin Soo; Lee, Jung-Kul; Kim, Dong Rip; Kim, Sun Chang; Cho, Suhyung; Cho, Byung-Kwan
- Issue Date
- Sep-2019
- Publisher
- AMER CHEMICAL SOC
- Keywords
- Eubacterium limosum; acetogen; inducible promoter; CRISPR-Cas9; CRISPR interference; Wood-Ljungdahl pathway
- Citation
- ACS SYNTHETIC BIOLOGY, v.8, no.9, pp.2059 - 2068
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS SYNTHETIC BIOLOGY
- Volume
- 8
- Number
- 9
- Start Page
- 2059
- End Page
- 2068
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/12573
- DOI
- 10.1021/acssynbio.9b00150
- ISSN
- 2161-5063
- Abstract
- Eubacterium limosum is one of the important bacteria in C-1 feedstock utilization as well as in human gut microbiota. Although E. limosum has recently garnered much attention and investigation on a genome-wide scale, a bottleneck for systematic engineering in E. limosum is the lack of available genetic tools and an efficient genome editing platform. To overcome this limitation, we here report expanded genetic tools and the CRISPR-Cas9 system. We have developed an inducible promoter system that enables implementation of the CRISPR-Cas9 system to precisely manipulate target genes of the Wood-Ljungdahl pathway with 100% efficiency. Furthermore, we exploited the effectiveness of CRISPR interference to reduce the expression of target genes, exhibiting substantial repression of several genes in the Wood-Ljungdahl pathway and fructose-PTS system. These expanded genetic tools and CRISPR-Cas9 system comprise powerful and widely applicable genetic tools to accelerate functional genomic study and genome engineering in E. limosum.
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