Team:BIOSINT Mexico
Abstract
This project aims to develop an organic genetically modified machine that have the capacity to function as a biosensor. This biosensor will be useful in biotechnological and research processes. Thanks to Synthetic Biology techniques, it is possible to create a microorganism with the ability to percieve luminescent stimuli in order to visually reproduce them through chromoproteins production. Since it is a modular project, it is very likely to adapt it with the main goal, which is to have the capacity to respond to other stimuli, as pollution agents and other chemicals.
Since the light receptors and the corresponding transcription factors are not a natural part of the Escherichia coli’s genome, it is necessary to synthesize them with constitutive promoters in order to have them all the time included in its normal replication and transcription process. These receptors are specifically blue and red light receptors, and both of them phosphorylate the corresponding transcription factors in darkness or absence of light. As the receptors sense, not the light, but the absence of it, we have design our devices to inhibit the production of the chromoproteins of the respective colors. In a few words, if blue light it is not iluminating the culture, the production of pink proteins starts, and if there isn't red light, the production of yellow proteins starts as well.
The expected results are the next ones:
After the construction of the plasmids and the proper assembly in lab, it will be necessary to create a light canon. This light canon should be small to put it into an incubator and also should have the feature to be customizable to have different designs and test the cells are doing what are supposed to.
The future of this project is that other iGEM team with the use of synthetic biology could switch the light receptors with other kind of receptors, as pollutants, other chemicals, etc… and at the end it will become in a very functional biosensor capable of sensing different things simultaneously.