Golden Gate-Assisted Gene Doctoring for Streamlined and Efficient Recombineering in Bacteria

Area of Science:

• Microbiology
• Molecular Biology
• Genetic Engineering

Background:

• Gene Doctoring utilizes Red-recombinase for bacterial DNA integration via homologous recombination (recombineering).
• Traditional recombineering uses linear DNA, which is prone to degradation and less efficient.
• Donor plasmid production for Gene Doctoring traditionally relied on inefficient cloning methods.

Purpose of the Study:

• To develop a streamlined protocol for Gene Doctoring using Golden Gate assembly for donor plasmid construction.
• To enhance the efficiency and simplicity of creating complex genetic modifications in bacteria.
• To provide a versatile method applicable to various bacterial strains and genetic modifications.

Main Methods:

• Combining Gene Doctoring with Golden Gate assembly for donor plasmid production.
• Utilizing a custom-designed plasmid backbone for efficient multi-part DNA assembly.
• Demonstrating the protocol by inserting a superfolder green fluorescent protein gene into E. coli MG1655.

Main Results:

• Rapid and simple production of complex, multi-part DNA assemblies for Gene Doctoring.
• Increased efficiency in genetic modification compared to traditional methods.
• Successful insertion of a gene with tetracycline resistance selection in E. coli.

Conclusions:

• The protocol enables rapid and straightforward Gene Doctoring through optimized donor plasmid assembly.
• This method significantly improves the ease and efficiency of genetic engineering in bacteria.
• The technique is adaptable for diverse genetic modifications across a wide range of bacterial species.