An efficient, scarless, selection-free technology for phage engineering

Most recently developed phage engineering technologies are based on the CRISPR-Cas system. Here, we present a non-CRISPR-based method for genetically engineering the Escherichia coli phages T5, T7, P1, and λ by adapting the pORTMAGE technology, which was developed for engineering bacterial genomes....

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Main Authors: Moran G. Goren, Tridib Mahata, Udi Qimron
Format: Article
Language:English
Published: Taylor & Francis Group 2023-12-01
Series:RNA Biology
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Online Access:https://www.tandfonline.com/doi/10.1080/15476286.2023.2270344
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author Moran G. Goren
Tridib Mahata
Udi Qimron
author_facet Moran G. Goren
Tridib Mahata
Udi Qimron
author_sort Moran G. Goren
collection DOAJ
description Most recently developed phage engineering technologies are based on the CRISPR-Cas system. Here, we present a non-CRISPR-based method for genetically engineering the Escherichia coli phages T5, T7, P1, and λ by adapting the pORTMAGE technology, which was developed for engineering bacterial genomes. The technology comprises E. coli harbouring a plasmid encoding a potent recombinase and a gene transiently silencing a repair system. Oligonucleotides with the desired phage mutation are electroporated into E. coli followed by infection of the target bacteriophage. The high efficiency of this technology, which yields 1–14% of desired recombinants, allows low-throughput screening for the desired mutant. We have demonstrated the use of this technology for single-base substitutions, for deletions of 50–201 bases, for insertions of 20 bases, and for four different phages. The technology may also be readily modified for use across many additional bacterial and phage strains.[Figure: see text]
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spelling doaj-art-a6fdfea4e56b4e2ba8afee32b82fd6262025-08-20T02:17:00ZengTaylor & Francis GroupRNA Biology1547-62861555-85842023-12-0120183083510.1080/15476286.2023.2270344An efficient, scarless, selection-free technology for phage engineeringMoran G. Goren0Tridib Mahata1Udi Qimron2Department of Clinical Microbiology and Immunology, School of Medicine, Tel Aviv University, Tel Aviv, IsraelDepartment of Clinical Microbiology and Immunology, School of Medicine, Tel Aviv University, Tel Aviv, IsraelDepartment of Clinical Microbiology and Immunology, School of Medicine, Tel Aviv University, Tel Aviv, IsraelMost recently developed phage engineering technologies are based on the CRISPR-Cas system. Here, we present a non-CRISPR-based method for genetically engineering the Escherichia coli phages T5, T7, P1, and λ by adapting the pORTMAGE technology, which was developed for engineering bacterial genomes. The technology comprises E. coli harbouring a plasmid encoding a potent recombinase and a gene transiently silencing a repair system. Oligonucleotides with the desired phage mutation are electroporated into E. coli followed by infection of the target bacteriophage. The high efficiency of this technology, which yields 1–14% of desired recombinants, allows low-throughput screening for the desired mutant. We have demonstrated the use of this technology for single-base substitutions, for deletions of 50–201 bases, for insertions of 20 bases, and for four different phages. The technology may also be readily modified for use across many additional bacterial and phage strains.[Figure: see text]https://www.tandfonline.com/doi/10.1080/15476286.2023.2270344DNA engineeringBacteriophagespORTMAGE
spellingShingle Moran G. Goren
Tridib Mahata
Udi Qimron
An efficient, scarless, selection-free technology for phage engineering
RNA Biology
DNA engineering
Bacteriophages
pORTMAGE
title An efficient, scarless, selection-free technology for phage engineering
title_full An efficient, scarless, selection-free technology for phage engineering
title_fullStr An efficient, scarless, selection-free technology for phage engineering
title_full_unstemmed An efficient, scarless, selection-free technology for phage engineering
title_short An efficient, scarless, selection-free technology for phage engineering
title_sort efficient scarless selection free technology for phage engineering
topic DNA engineering
Bacteriophages
pORTMAGE
url https://www.tandfonline.com/doi/10.1080/15476286.2023.2270344
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