Trp8, a transient receptor potential channel expressed in...

C - Chemistry – Metallurgy – 12 – N

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C12N 15/12 (2006.01) C07H 21/04 (2006.01) C07K 14/705 (2006.01)

Patent

CA 2406481

The present invention relates to the discovery, identification and characterization of a transient receptor potential channel, referred to herein as TRP8, which is expressed in taste receptor cells and associated with the perception of bitter and sweet taste. The invention encompasses TRP8 nucleotides, host cell expression systems, TRP8 proteins, fusion proteins, polypeptides and peptides, antibodies to the TRP8 protein, transgenic animals that express a TRP8 transgene, and recombinant "knock-out" animals that do not express TRP8. The invention further relates to methods for identifying modulators of the TRP8-mediated taste response and the use of such modulators to either inhibit or promote the perception of bitterness or sweetness. The modulators of TRP8 activity may be used as flavor enhancers in foods, beverages and pharmaceuticals.

Cette invention concerne la découverte, l'identification et la caractérisation d'un canal potentiel de réception transitoire, appelé TRP8, qui s'exprime dans les cellules réceptrices du goût et qui est associé à la perception des saveurs amère et sucrée. L'invention porte sur des nucléotides TRP8, des systèmes d'expression de cellules hôtes, des protéines TRP8, des protéines hybrides, des polypeptides et des peptides, des anticorps de la protéine TRP8, des animaux transgéniques qui expriment le transgène TRP8 et des animaux recombinants "knock-out" qui n'expriment pas TRP8. L'invention concerne également des méthodes permettant d'identifier des modulateurs de la réponse induite par TRP8 et l'utilisation de ces modulateurs soit pour inhiber, soit pour accentuer la perception du goût amer ou du goût sucré. Les modulateurs de l'activité de TRP8 peuvent être utiliser comme renforçateur de goût pour des aliments, des boissons et des produits pharmaceutiques.

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