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Team:Missouri Miners/Project
From 2008.igem.org
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Overall project
The goal of this research is the manipulation of yeast cells; granting them the capability of measuring the concentration of ethanol present. This project utilizes the metabolic pathways of the yeast Pichia pastoris, which are capable of metabolizing ethanol and methanol. The enzyme, alcohol oxidase (AO), encoded in the AOXI gene appears to be the major enzyme involved in methanol metabolism. If both carbon sources are present, however, P. pastoris prefers to utilize ethanol first. This preference is controlled by the AOXI promoter. Fusing the AOXI promoter with a fluorescent protein gene will allow visible detection of the expression of AOXI. In supplying the yeast with ethanol and methanol simultaneously, the cells should produce the fluorescent protein after ethanol consumption; resulting in a visible color and fluorescence. The concentration of ethanol can be determined by measuring the time before fluorescence and in doing so, will make plausible the development of a breathalyzer device and additional sensor systems.
