Editing TAS1R2

'''TAS1R2''' is a gene that encodes the protein T1R2, a component of the sweet taste receptor. This receptor is a heterodimeric G protein-coupled receptor that also includes the protein T1R3, encoded by the [[TAS1R3]] gene. The T1R2+3 receptor is responsible for the perception of sweetness, including both natural sugars and artificial sweeteners.

== Structure ==
The T1R2 protein is a large, multi-domain protein that spans the cell membrane. It contains a large extracellular domain, a seven-transmembrane domain, and an intracellular domain. The extracellular domain is thought to be involved in ligand binding, while the seven-transmembrane domain is responsible for coupling the receptor to intracellular signaling pathways.

== Function ==
The T1R2+3 receptor is expressed in [[taste bud]] cells on the tongue, where it is involved in the perception of sweet taste. When a sweet substance is present in the mouth, it binds to the T1R2+3 receptor, triggering a series of intracellular events that ultimately lead to the perception of sweetness.

The T1R2+3 receptor is also expressed in other tissues, including the gut and pancreas, where it may play a role in glucose homeostasis.

== Clinical significance ==
Mutations in the TAS1R2 gene can lead to a reduced ability to taste sweetness, a condition known as [[hypogeusia]]. This can have significant effects on diet and nutrition, as individuals with hypogeusia may consume more sugar in an attempt to compensate for their reduced ability to taste it.

== See also ==
* [[TAS1R3]]
* [[Taste receptor]]
* [[G protein-coupled receptor]]

== References ==
<references />

[[Category:Genes]]
[[Category:Taste]]
[[Category:G protein-coupled receptors]]

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