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Updated: Dec 23, 2025

Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms
Published on: May 25, 2018
Highly efficient genome editing in N. gerenzanensis using an inducible CRISPR/Cas9-RecA system
Xue Yue1, Tianyu Xia2, Shuai Wang1
1School of Pharmacy, Liaocheng University, 1 Hunan Rd, Liaocheng, 252000, Shandong, People's Republic of China.
Objective:
To develop an inducible CRISPR/Cas9-Recombinase A (RecA) system to manipulate genes in Nonomuraea gerenzanensis effectively.
Results:
Compared with traditional homologous recombination, the inducible CRISPR/Cas9 system achieved 68.8% editing efficiency, whereas, with both the inducible Cas9 and the overexpressed RecA, the efficiency of the combined genome editing system reached 100%. The dbv23-deleted mutant obtained by the inducible CRISPR/Cas9-RecA system was confirmed to produce more A40926 with an approximate yield of 200 mg L-1 than that of around 150 mg L-1 produced by the wild-type strain.
Conclusions:
This inducible CRISPR/Cas9-RecA system was successfully constructed and can be utilized as an efficient genome editing tool for Actinomyces able to shorten editing time simultaneously.
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