This page contains a description of the mini-bootcamp run in Feb 2011.
Group
Students:
- Jorge Goncalves
- Jun Lie
- Yuan Ye
- Enoch Yeung
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Part-time students
- Elisa Franco
- Richard Murray
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Instructors
- Emzo de los Santos
- Joe Meyerowitz
- Ophelia Venturelli
- Vanessa Jonsson
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Project advisor:
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Project description
The goal of this project is to measure variability in gene expression that is relevant for synthetically designed circuits. The issue that we are trying to understand is now much variability arises for the expression of a given circuit under degrees of freedom that are typically not controlled in synthetic designs:
- Location and orientation of circuit elements in the plasmid
- Vectors used for expressing the circuit, including copy number and antibiotic resistance
- Growth conditions (temperature, oxygen, media, growth phase)
To understand how these (and other) factors will affect circuit operation, a simple genetic circuit consisting of 1 or 2 promoters will be built and implemented in a variety of conditions. The dynamic response of the circuit will be measured, including cell-to-cell variability (via flow cytometry or microscopy).
Project objectives:
- Characterize the differences (if any) in mean expression level for a standard circuit (PtetR:GFP) in different backbones, growth media, antibiotic concentrations, inducer levels, etc
- Characterize differences in expression distributions (if any) using flow cytometry; use cell sorting to check for differences in cell phenotype
- Construct a simple circuit using different design choices and characterize differences in expression level (and distribution)
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- Circuit layout: directions, ordering
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- (Cell strain)
- Growth media: LB, M9/glycerol, M9/glucose
- Induction level
- Temperature
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Schedule
Session 0: project discussion and lab tour
Session 1: cloning
Session 2: gels
Session 3: plate reader
Session 4: microscope
Session 5: spectrofluorometer
Session 6: flow cytometer