Abstract
The BioBrick™ paradigm for the assembly of enzymatic pathways is being adopted and becoming a standard practice in microbial engineering. We present a strategy to adapt the BioBrick™ paradigm to allow the quick assembly of multi-gene pathways into a number of vectors as well as for the quick mobilization of any cloned gene into vectors with different features for gene expression and protein purification. A primary BioBrick™ (BB-eGFP) was developed where the promoter/RBS, multiple cloning sites, optional protein purification affinity tags and reporter gene were all separated into discrete regions by additional restriction enzymes. This primary BB-eGFP then served as the template for additional BioBrick™ vectors with different origins of replication, antibiotic resistances, inducible promoters (arabinose, IPTG or anhydrotetracycline), N- or C-terminal Histidine tags with thrombin cleavage, a LacZα reporter gene and an additional origin of mobility (oriT). All developed BioBricks™ and BioBrick™ compatible vectors were shown to be functional by measuring reporter gene expression. Lastly, a C30 carotenoid pathway was assembled as a model enzymatic pathway to demonstrate in vivo functionality and compatibility of this engineered vector system.
Original language | English (US) |
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Pages (from-to) | 1275-1286 |
Number of pages | 12 |
Journal | Applied Microbiology and Biotechnology |
Volume | 92 |
Issue number | 6 |
DOIs | |
State | Published - Dec 2011 |
Bibliographical note
Funding Information:Acknowledgements This manuscript is dedicated to the memory of Dr. Ethan Thoreau Johnson, our dear friend, colleague and manuscript co-author, who died due to injuries suffered in a hit-and-run car accident on September 21st of 2010. The authors acknowledge support from the National Science Foundation (Grant CBET-0756296), the National Institute of Health (Grant GM080299), the Office of Naval Research (Grant N00014-10-1-0157) and the Institute for Renewable Energy and Environment (University of Minnesota). We thank Ana Correa, Heather Kokesh, Andrew Le for assistance in plasmid construction and testing.
Keywords
- BioBrick™
- Carotenoid
- Escherichia coli
- Metabolic engineering
- Pathway engineering
- Synthetic biology
- Vector system