Template:Team:KULeuven/Components/Blue Light Receptor

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Latest revision as of 10:38, 4 October 2009

Blue Light Receptor

The receptor senses the blue light to which the bacteria are exposed. By choosing the light intensity, the wanted vanillin concentration is set. Upon photo-excitation the receptorprotein YcgF dimerizes and interacts directly with the repressor YcgE. This protein is bound to the promoter-region of the key-gene and inhibits its transcription. The dimerized YcgF acts as an anti-repressor and releases YcgE from the DNA. Thereupon, the transcribed key activates vanillin production, which is proportional to the entered intensity of the blue light.

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 {{Team:KULeuven/Components/Component|9/9d/Missblue-deckchair.png|Blue Light Receptor}}
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-This receptor senses the intensity of blue light. By exposing the bacteria to a certain intensity of blue light we enter the wanted vanillin concentration. The receptor contains a protein, YcgF. Upon photo-excitation it dimerizes and acts as an anti-repressor for an other protein, YcgE. YcgE is bound to the promotor-region and inhibits transcription. The dimerized YcgF binds with the repressor, releasing it from the DNA and allowing transcription. This way the transcribed component is proportional to the intensity of blue light.
+The receptor senses the blue light to which the bacteria are exposed. By choosing the light intensity, the wanted vanillin concentration is set. Upon photo-excitation the receptorprotein YcgF dimerizes and interacts directly with the repressor YcgE. This protein is bound to the promoter-region of the key-gene and inhibits its transcription. The dimerized YcgF acts as an anti-repressor and releases YcgE from the DNA. Thereupon, the transcribed key activates vanillin production, which is proportional to the entered intensity of the blue light.
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