Laszlo Mozsik

Genome editing tools for activating silent antimicrobial agents

The CRISPR/Cas9 system is a recent molecular tool that has revolutionized genome editing of all kind of cells. In the CRISPR/Cas9 genome editing technology, the Cas9 endonuclease is guided by a single chimeric guide RNA to a specific locus, where it introduces a double strand break in the DNA sequence that can be used for enhanced homology directed repair. Recently, we have developed highly efficient CRISPR/Cas9 based marker-free genome editing tools for Penicillium chrysogenum.  During the ALERT program, the aim is to employ the Cas9 protein to allow for RNA-guided transcriptional regulation. This technology will be used to upregulate silent endogenous secondary metabolite genes in P. chrysogenum and will be transferred to other fungi.

Department: Molecular Microbiology, RUG
Principal investigator(s): prof. Arnold J.M. Driessen

ESR2.3 Laszlo Mozsik
ESR2.3 Laszlo Mozsik


Iacovelli, R., Mózsik, L., Bovenberg, R. A. L., & Driessen, A. J. M. (2021). Identification of a conserved N-terminal domain in the first module of ACV synthetases. MicrobiologyOpen, 10(1), e1145.  

Mózsik, L., Hoekzema, M., de Kok, N. A. W., Bovenberg, R. A. L., Nygård, Y., & Driessen, A. J. M. (2021). CRISPR-based transcriptional activation tool for silent genes in filamentous fungi. Scientific Reports, 11(1), 1118.  

Pohl, C., Polli, F., Schütze, T., Viggiano, A., Mózsik, L., Jung, S., de Vries, M., Bovenberg, R. A. L., Meyer, V., & Driessen, A. J. M. (2020). A Penicillium rubens platform strain for secondary metabolite production. Scientific Reports, 10(1), 7630.   

Mózsik, L., Büttel, Z., Bovenberg, R. A. L., Driessen, A. J. M., & Nygård, Y. (2019). Synthetic control devices for gene regulation in Penicillium chrysogenum. Microbial Cell Factories, 18(1), 203.