Team:Duke/Project/Results/Part2

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Results: Part Characterization using Flow Cytometry

After being integrated into the yeast genome, parts were characterized individually by flow cytometry.

TALEs

  1. Initial characterization: TALE-mCherry constructs are present and expression is inducible by beta-estradiol. Cells were grown with and without beta-estradiol and fluorescence was compared to background levels using a control strain.



TALE Cooperativity 2.png

Figure 1.5.1. insert graph/data here



  1. Relationship between beta-estradiol concentration and TALE-mCherry expression. Cells were grown in varied beta-estradiol concentrations and fluorescence was compared to background levels using a control strain



TALE Cooperativity 2.png

Figure 1.5.2. insert input, output curve here



ACT1 reporters

  1. Initial characterization: ACT1-yEVenus constructs with no operators showed distinct constitutive gene expression. However, presence of operator sites in the 5' UTR knocked down constitutive expression almost to background levels. In lieu of these results, we decided to construct TEF1-promoter reporter constructs. TEF1 is a stronger constitutive promoter that we hoped would counteract the effects of the operator sequence on constitutive expression levels.



TALE Cooperativity 2.png

Figure 1.5.3. insert graph/data here



TEF1 reporters

  1. Initial characterization: TEF1-yEVenus constructs with operator sites in the 5' UTR showed expression levels significantly higher than background levels, and comparatively higher than the ACT1-yEVenus constructs.



TALE Cooperativity 2.png

Figure 1.5.4. insert graph/data here






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