Cell lines that stably or transiently express a functional...

Chemistry: molecular biology and microbiology – Process of mutation – cell fusion – or genetic modification – Introduction of a polynucleotide molecule into or...

Reexamination Certificate

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C435S325000, C530S350000, C530S402000

Reexamination Certificate

active

10725103

ABSTRACT:
Cells are engineered to stably or transiently express T1R2 and T1R3 polypeptides, desirably in association with a G protein. The resultant heteromeric taste receptor is a sweet taste receptor and responds to sweet taste stimuli such as artificial and natural sweeteners, e.g., saccharin. The invention provides a preferred mammalian cell lines, e.g., HEK-293 cells that stably express T1R2/T1R3 and Gα15under inducible conditions. These cells are useful in cell-based assays for identifying compounds that elicit or modulate sweet taste.

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