An efficient and versatile CRISPR-Cas9 system for genetic manipulation of multi-drug resistant Klebsiella pneumoniae
2021
Summary Multi-drug resistant (MDR) Klebsiella pneumoniae remains an urgent public health threat. While whole-genome sequencing has helped identify genetic changes underlying resistance, functional validation remains difficult due to a lack of genetic manipulation systems for MDR K. pneumoniae. CRISPR-Cas9 has revolutionized molecular biology, but its use was only recently adapted in bacteria by overcoming the lack of genetic repair systems. We describe a CRISPR-Cas9/lambda recombineering system utilizing a zeocin resistance cassette allowing efficient and versatile genetic manipulation of K. pneumoniae. For complete details on the use and execution of this protocol, please refer to McConville et al. (2020) .
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