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Golden Gate assembly of BioBrick-compliant parts using Type II restriction endonucleases
1Department of Biochemistry, Emory University School of Medicine, Department of Biochemistry, O. Wayne Rollins Research Center, 1510 Clifton Road NE, Room 4001, Atlanta, GA 30322, USA.
Biotechniques
|March 8, 2022
Summary
New DNA recombination methods streamline BioBrick assembly using methylase expression vectors. These approaches offer improved efficiency and specificity for synthetic biology workflows.
Area of Science:
- Synthetic Biology
- Molecular Biology
- Genetic Engineering
Background:
- The BioBrick standard offers ease of design for DNA assembly.
- Golden Gate assembly provides decreased labor for DNA manipulation.
- There is a need for DNA recombination methods combining the advantages of both.
Purpose of the Study:
- To demonstrate new DNA recombination methods.
- To combine the ease of design of BioBricks with the efficiency of Golden Gate assembly.
- To streamline synthetic biology workflows using methylase-assisted DNA assembly.
Main Methods:
- Utilized DNA methyltransferase expression vectors to protect specific DNA sites.
- Employed Type II restriction endonucleases for DNA assembly.
- Developed two discontinuous (4R/2M) and continuous (5RM) DNA assembly methods.
Main Results:
- The 4R/2M discontinuous assembly showed higher efficiency and comparable specificity to conventional subcloning.
- The 5RM continuous assembly demonstrated similar efficiency and specificity to Golden Gate assembly.
- Incomplete *in vivo* methylation did not significantly hinder the 5RM assembly efficiency.
Conclusions:
- Methylase-assisted DNA recombination methods effectively streamline BioBrick assembly.
- These methods simplify synthetic part design and assembly workflows.
- The developed techniques offer practical advantages for synthetic biology applications.
