TL;DR
This chapter presents a concise, reproducible protocol to increase transformation efficiency in F. nucleatum by systematically bypassing RM barriers, and can be adapted to additional F. nucleatum isolates once their methylation context is defined.
This chapter describes strategies to evade RM defenses and improve transformation efficiencies across diverse Fusobacterium lineages, employing a sequence-based "RM-silencing" method that has enabled successful delivery of replicative plasmids, linear recombination templates, and transposon cassettes into previously in...
This chapter presents a step-by-step protocol for designing sgRNAs, constructing CRISPRi plasmids, transforming F. nucleatum ATCC 23726, and evaluating gene silencing phenotypes, using the nonessential gene ftsW, which encodes a protein required for peptidoglycan synthesis and cell division, as a model target.
This chapter provides a detailed, step-by-step protocol for implementing a conditional plasmid system that enables efficient, markerless gene deletion in FNA strains and provides a powerful and adaptable tool for advancing genetic studies in this genetically recalcitrant subspecies.
Nearly 100% knockout efficiency and over 86.67% integration efficiency were achieved in the described experimental cases with this novel pop-in/pop-out-based editing system, which provides a new gene-editing tool for synthetic biology in Pichia pastoris.
Cyanobacterium aponinum UTEX 3222 is a fast-growing marine cyanobacterium that reaches high cell densities, making it an attractive chassis strain for low-cost biomanufacturing. However, past efforts to genetically engineer UTEX 3222 have been unsuccessful. We hypothesized that the complex restriction modification syst...
This protocol minimizes off-target editing, shortens experimental timelines, reduces screening workload, and provides a reliable platform for investigating resistance mechanisms, validating candidate genes, and supporting functional genomics studies in clinically relevant bacterial pathogens.
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