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MIDAS: A Modular DNA Assembly System for Synthetic Biology
Craig J van Dolleweerd1, Sarah A Kessans2, Kyle C Van de Bittner2,3
1Protein Science & Engineering, Callaghan Innovation, School of Biological Sciences , University of Canterbury , Private Bag 4800, Christchurch 8140 , New Zealand.
ACS Synthetic Biology
|April 6, 2018
Summary
A new DNA assembly platform, Modular Idempotent DNA Assembly System (MIDAS), enables precise construction of complex genetic circuits. This system efficiently builds genes and metabolic pathways for synthetic biology applications.
Area of Science:
- Synthetic Biology
- Molecular Biology
- Biotechnology
Background:
- Golden Gate cloning is a powerful method for DNA assembly.
- Synthetic biology requires efficient and precise methods for constructing complex genetic constructs.
- Existing methods may lack flexibility in assembling multiple genes with precise control.
Purpose of the Study:
- To describe a modular and hierarchical DNA assembly platform, MIDAS.
- To demonstrate the utility of MIDAS for constructing complex genetic assemblies.
- To showcase MIDAS's application in reconstructing a fungal metabolic pathway.
Main Methods:
- Development of the Modular Idempotent DNA Assembly System (MIDAS) based on Golden Gate cloning.
- Utilizing a standardized assembly design with sequence-verified, reusable DNA parts.
- Assembling multiple genes with user-defined order, orientation, and polarity.
Main Results:
- MIDAS enables precise assembly of multiple DNA fragments in a single reaction.
- Successfully reconstructed a 25.2 kb plasmid containing a 7-gene metabolic pathway from 21 modules.
- Demonstrated efficient assembly of complex genetic constructs in the fungus Penicillium paxilli.
Conclusions:
- MIDAS provides a flexible and efficient platform for synthetic biology.
- The system supports the assembly of tailored combinations of genes and genetic elements.
- MIDAS facilitates applications in diverse expression hosts for metabolic engineering and other fields.
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