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Manipulating natural product biosynthetic pathways via DNA assembler
Zengyi Shao1,2, Huimin Zhao1,3,4
1Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois.
Current Protocols in Chemical Biology
|June 7, 2014
Summary
DNA assembler, a synthetic biology tool, enables efficient manipulation of biochemical pathways for natural product discovery. This method utilizes yeast homologous recombination to construct expression vectors, facilitating gene cluster characterization and activation.
Area of Science:
- Synthetic biology
- Biochemistry
- Genomics
Background:
- Genome sequencing provides a vast resource for discovering natural product biosynthetic gene clusters.
- Limited knowledge of organism manipulation and pathway engineering hinders natural product discovery and production.
- Efficient methods are needed to characterize and activate silent gene clusters.
Purpose of the Study:
- To present DNA assembler as an efficient synthetic biology method for constructing and manipulating biochemical pathways.
- To illustrate the use of DNA assembler for characterizing gene clusters and activating silent clusters.
- To provide a new platform for de novo cluster assembly and genome mining.
Main Methods:
- Utilizing yeast in vivo homologous recombination.
- Synthesizing entire expression vectors containing target biosynthetic pathways and necessary genetic elements.
- Applying DNA assembler to spectinabilin gene clusters from two hosts.
Main Results:
- Demonstrated DNA assembler's effectiveness in cluster characterization and silent cluster activation.
- Showcased the method's versatility in manipulating gene clusters.
- Bypassed traditional laborious strategies for eliciting pathway expression.
Conclusions:
- DNA assembler offers an efficient platform for synthetic biology applications.
- The method accelerates the discovery of new natural products through genome mining and cluster assembly.
- Facilitates economical production of valuable compounds by enabling pathway expression.
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