T1r hetero-oligomeric taste receptors, cell lines that...

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 19/00 (2006.01) A23L 1/22 (2006.01) A23L 1/226 (2006.01) A23L 1/236 (2006.01) C07K 14/705 (2006.01) G01N 33/02 (2006.01) G01N 33/566 (2006.01)

Patent

CA 2535045

The invention relates to compounds that specifically bind a T1R1/T1R3 or T1R2/T1R3 receptor or fragments or subunits thereof. The present invention also relates to the use of hetero-oligomeric and chimeric taste receptors comprising T1R1/T1R3 and T1R2/T1R3 in assays to identify compounds that respectively respond to umami taste stimuli and sweet taste stimuli. Further, the invention relates to the constitutive of cell lines that stably or transiently co-express a combination of T1R1 and T1R3; or T1R2 and T1R3; under constitutive or inducible conditions. The use of these cells lines in cell- based assays to identify umami and sweet taste modulatory compounds is also provided, particularly high throughput screening assays that detect receptor activity by use of fluorometric imaging.

L'invention concerne des composés qui lient de manière spécifique un récepteur T1R1/T1R3 ou T1R2/T1R3 ou bien des fragments ou des sous-unités de ceux-ci, ainsi que l'utilisation de récepteurs du goût hétéro-oligomériques et chimériques comportant les T1R1/T1R3 et T1R2/T1R3 dans des tests visant à identifier des composés répondant respectivement aux stimuli du goût umami et aux stimuli du goût sucré. La présente invention porte également sur la constitution de lignes cellulaires qui co-expriment de manière stable ou transitoire une combinaison de T1R1 et de T1R3, ou de T1R2 et T1R3, dans des conditions constitutives ou inductibles. Cette invention concerne aussi l'utilisation de ces lignes cellulaires dans des tests à base de cellules pour identifier des composés modulateurs des goûts umami et sucré, notamment dans des tests de criblage à haut rendement pour détecter l'activité d'un récepteur au moyen de l'imagerie fluorimétrique.

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