Identification of a novel member of the T1R family of putative taste receptors

In the gustatory system, the recognition of sugars, amino acids and bitter‐tasting compounds is the function of specialized G protein‐coupled receptors. Recently, two members of novel subfamily of G protein‐coupled receptors were proposed to function as taste receptors based on their specific expres...

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Veröffentlicht in:Journal of neurochemistry 2001-05, Vol.77 (3), p.896-903
Hauptverfasser: Sainz, Eduardo, Korley, Julius N., Battey, James F., Sullivan, Susan L.
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container_title Journal of neurochemistry
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creator Sainz, Eduardo
Korley, Julius N.
Battey, James F.
Sullivan, Susan L.
description In the gustatory system, the recognition of sugars, amino acids and bitter‐tasting compounds is the function of specialized G protein‐coupled receptors. Recently, two members of novel subfamily of G protein‐coupled receptors were proposed to function as taste receptors based on their specific expression in taste receptor cells. Here, we report the identification of a third member, T1R3, of this family of receptors. T1R3 maps near the telomere of mouse chromosome 4 rendering it a candidate for the Sac locus, a primary determinant of sweet preference in mice. Consistent with its candidacy for the Sac locus, T1R3 displays taste receptor cell‐specific expression. In addition, taster and non‐taster strains of mouse harbor different alleles of T1R3.
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Recently, two members of novel subfamily of G protein‐coupled receptors were proposed to function as taste receptors based on their specific expression in taste receptor cells. Here, we report the identification of a third member, T1R3, of this family of receptors. T1R3 maps near the telomere of mouse chromosome 4 rendering it a candidate for the Sac locus, a primary determinant of sweet preference in mice. Consistent with its candidacy for the Sac locus, T1R3 displays taste receptor cell‐specific expression. 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Recently, two members of novel subfamily of G protein‐coupled receptors were proposed to function as taste receptors based on their specific expression in taste receptor cells. Here, we report the identification of a third member, T1R3, of this family of receptors. T1R3 maps near the telomere of mouse chromosome 4 rendering it a candidate for the Sac locus, a primary determinant of sweet preference in mice. Consistent with its candidacy for the Sac locus, T1R3 displays taste receptor cell‐specific expression. In addition, taster and non‐taster strains of mouse harbor different alleles of T1R3.</description><subject>Amino Acid Sequence</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Chromosome Mapping</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gene Expression</subject><subject>gustation</subject><subject>gustatory system</subject><subject>G protein‐coupled receptor</subject><subject>In Situ Hybridization</subject><subject>Mice</subject><subject>Mice, Inbred C57BL</subject><subject>Molecular Sequence Data</subject><subject>mouse</subject><subject>Olfactory Mucosa - chemistry</subject><subject>Olfactory system and olfaction. 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subjects Amino Acid Sequence
Animals
Biological and medical sciences
Chromosome Mapping
Fundamental and applied biological sciences. Psychology
Gene Expression
gustation
gustatory system
G protein‐coupled receptor
In Situ Hybridization
Mice
Mice, Inbred C57BL
Molecular Sequence Data
mouse
Olfactory Mucosa - chemistry
Olfactory system and olfaction. Gustatory system and gustation
Protein Sorting Signals
Rats
Receptors, Cell Surface - analysis
Receptors, Cell Surface - chemistry
Receptors, Cell Surface - genetics
Receptors, G-Protein-Coupled
Sac locus
Sequence Alignment
taste
Taste - genetics
Taste Buds - chemistry
Tongue - cytology
Vertebrates: nervous system and sense organs
title Identification of a novel member of the T1R family of putative taste receptors
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