CRISPR-Cpf1 Assisted Genome Editing of Corynebacterium Glutamicum
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Corynebacterium glutamicum is an important industrial metabolite producer that is difficult to genetically engineer. Although the Streptococcus pyogenes (Sp) CRISPR-Cas9 system has been adapted for genome editing of multiple bacteria, it cannot be introduced into C. glutamicum. Here we report a Francisella novicida (Fn) CRISPR-Cpf1-based genome-editing method for C. glutamicum. CRISPR-Cpf1, combined with single-stranded DNA (ssDNA) recombineering, precisely introduces small changes into the bacterial genome at efficiencies of 86-100%. Large gene deletions and insertions are also obtained using an all-in-one plasmid consisting of FnCpf1, CRISPR RNA, and homologous arms. The two CRISPR-Cpf1-assisted systems enable N iterative rounds of genome editing in 3N+4 or 3N+2 days. A proof-of-concept, codon saturation mutagenesis at G149 of γ-glutamyl kinase relieves L-proline inhibition using Cpf1-assisted ssDNA recombineering. Thus, CRISPR-Cpf1-based genome editing provides a highly efficient tool for genetic engineering of Corynebacterium and other bacteria that cannot utilize the Sp CRISPR-Cas9 system.
Wen Q, Chen J, Li J, Dharmasiddhi I, Yang M, Xing J Microb Cell Fact. 2024; 23(1):349.
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Wu W, Adiego-Perez B, van der Oost J Nat Biotechnol. 2024; 42(12):1807-1821.
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Optogenetic control of Corynebacterium glutamicum gene expression.
Deng C, Xin R, Li X, Zhang J, Fan L, Qiu Y Nucleic Acids Res. 2024; 52(22):14260-14276.
PMID: 39607706 PMC: 11662647. DOI: 10.1093/nar/gkae1149.
Raza A, Fatima P, Yasmeen B, Rana Z, Ellakwa D Naunyn Schmiedebergs Arch Pharmacol. 2024; .
PMID: 39404843 DOI: 10.1007/s00210-024-03509-6.
Advancements in gene editing technologies for probiotic-enabled disease therapy.
Wang L, Hu J, Li K, Zhao Y, Zhu M iScience. 2024; 27(9):110791.
PMID: 39286511 PMC: 11403445. DOI: 10.1016/j.isci.2024.110791.