TAS2R38
Encyclopedia
TAS2R38 is a bitter taste receptor
Taste receptor
A Taste receptor is a type of receptor which facilitates the sensation of taste.Examples include TAS2R16 and TAS2R38.They are divided into two families:* Type 1, sweet, first characterized in 2001: –...

 which facilitates the tasting of phenylthiocarbamide
Phenylthiocarbamide
Phenylthiocarbamide, also known as PTC, or phenylthiourea,is an organosulfur thiourea containing a phenyl ring.It has the unusual property that it either tastes very bitter or is virtually tasteless, depending on the genetic makeup of the taster...

 (PTC) and propylthiouracil
Propylthiouracil
Propylthiouracil or 6-n-Propylthiouracil is a thioamide drug used to treat hyperthyroidism by decreasing the amount of thyroid hormone produced by the thyroid gland...

 (PROP), although it does not explain supertasting
Supertaster
A supertaster is a person who experiences the sense of taste with far greater intensity than average. Women are more likely to be supertasters, as are individuals of Asian and African descent. The cause of this heightened response is currently unknown, although it is thought to be, at least in...

.. Carriers of the PAV allele experience more bitterness from vegetables (Sandell & Breslin 2006) and consume vegetables less frequently and in lower amounts (Duffy et al 2010).
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