Team:KULeuven/Modeling/Vanillin Receptor

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Contents

Vanillin Sensor

Overview

The vanillin receptor senses the vanillin concentration outside the cell. This information is needed to create the feedback loop to control vanillin synthesis. Under influence of vanillin, Vir A gets autophosphorylated and phosphorylates on its turn Vir G. Vir G then triggers the transcription of Anti-key.

Biologie vanillin receptor.png
Biologie antikey.png

Models

Vanillin receptor.png

Simulation

Vanillin diffusion

Because VirA senses the vanillin concentration in the cytoplasm, it's important to estimate the diffusion of vanillin over the cell membrane. Also because vanillin is not actively removed from the extracellular medium, the rate of evaporation of vanillin is an important figure if we want to regulate the concentration of vanillin in the extracellular medium. A detailed analysis can be found in following document. vanillin_sensing

The most important figures are that the time to reach steady state between the concentration of the inter and extracellular concentration of vanillin in the order of 10 ms, the half-life through evaporation of vanillin in water is 20 hours.

VirA is a transmembrane sensory protein kinase that phosphorylates VirG. It's triggered by phenols, monosaccharides and acid