What happens to molecules after binding to a taste receptor?

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SUMMARY

The discussion focuses on the binding and unbinding processes of molecules to taste and smell receptors. It establishes that ligands undergo multiple cycles of binding and unbinding until they are no longer available, with the average time a ligand spends on a receptor determined by the "on-rate" and "off-rate." The off-rate is also referred to as the dissociation constant, which is crucial for understanding receptor-ligand interactions. This knowledge is essential for comprehending how taste perception and olfactory responses function.

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  • Understanding of ligand-receptor interactions
  • Familiarity with kinetic concepts such as on-rate and off-rate
  • Knowledge of dissociation constants in biochemistry
  • Basic principles of taste and smell physiology
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Biochemists, pharmacologists, sensory scientists, and anyone interested in the molecular mechanisms of taste and smell perception.

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Do they unbind somehow? Or are they somehow "eaten" by the receptor, so the more you taste of something, the less of it gets through? I'm only a Wikipedia/Youtube student so my knowledge has weird gaps all over the place. Got thinking about this by noticing an interesting taste that some medication had.

I'd also be curious about smell receptors.
 
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They unbind. In fact, an exposure to a ligand involves many cycles of binding and unbinding until the ligand is no longer available. How much time a ligand spends on the receptor (on average) can be found by comparing the "on-rate" (how often ligand binds) to the "off-rate" (how often it unbinds). Another name for the off-rate is the dissociation constant.
 
Thanks :)
 

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