Scenthase: Cellular Factories for the Production of...
Transcript of Scenthase: Cellular Factories for the Production of...
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Scenthase: Cellular Factories for the Production of Terpenes
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Our Team After its First Year
• Founded by first-year students in December 2013
• First iGEM Team to compete in three Tracks in one year
• Small but passionate core team
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The Problem: Terpenoid Production Today• What do you get when you add:
• Large quantities of deforested plant material
• Known carcinogens and environmentally toxic chemicals
• High economic demand for rare essential oils
• Answer: an impractical and expensive process for synthesizing and extracting rareessential oils and their active ingredients
(Hu and Corey 2002)
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Where Our Project Comes In : A Better Way to Manufacture Terpenes
• Escherichia coli and Saccharomyces cerevisiae• Genetic model systems• Precursors already present
• Synthase genes
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Meet the Terpenes
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Novel Approaches• Don’t synthesize: Grow your
own genes
• Go where no sequencer has gone before
• Full spectrum of fragrance
• Why settle with one copy when you can have two?
• Assembly lines in the lab
(Scherens and Goffeau 2004)
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Team Structure: An Experiment in SynBio Education
• Nine projects, nine times the opportunities for engagement
• 122 members, 60 trained in lab, 4 experiments in 4 weeks
• Collaboration with RavenwoodHigh School iGEM
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Getting Genes From Their Source
• Greenhouse
• Genomic Extractions
• Synthase PCR Isolation
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Success, But With a Catch
(Chang et al 2007)
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Another Way for Extracted Genes
• RNA Extraction from Plants
• RNA cDNA
• cDNA Synthase
• Site Directed Mutagenesis
(Hossain and Levy 2014)
(Integrated DNA Technologies)
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From Genes to Biobricksto Production
• Biobrick standard• Mutagenesis• Prefix and Suffix• pSB1C3
• Cloning into our vector
• Expression in E. coli and yeast
• GCMS confirmation, plus strep-tag and inducible promoter.
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pVU14006 : The Amenities
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Building the Vector
• PCR Extract Gene Cassettes from existing plasmids
• Combine into pUC19 MCS
• Mutagenize RFC10 sites
• Ligate synthase gene
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Results Summary
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Acknowledgements
Faculty Advisors:• Chrissy Marasco• Dr. Kathy Friedman• Dr. Kevin Seale (emeritus)
Faculty and Staff Assistance:• Dr. Amanda Benson• Dr. Mark Woelfle• Dr. Ian Macara
• Jonathan Ertelt• Charles Sissom• Dr. Aviva Joesph
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Questions and Answers