A novel vanilloid receptor-1 (VR-1) variant mammalian salt taste receptor.

نویسندگان

  • Vijay Lyall
  • Gerard L Heck
  • Anna K Vinnikova
  • Shobha Ghosh
  • Tam-Hao T Phan
  • John A Desimone
چکیده

An amiloride-insensitive (AI) salt taste receptor is the predominant transducer of Na+ taste in some mammalian species. Accordingly, the objective of this study was to characterize the AI-salt taste receptor. The AI-salt taste receptor in rat and mouse fungiform taste receptor cells (TRCs) was activated by the vanilloid receptor-1 (VR-1) agonists, resiniferatoxin (RTX), capsiacin (CAP) and elevated temperature (>38°), and was inhibited by the VR-1 antagonist, SB-366791 (Lyall et al., 2004). VR-1 knockout mice demonstrated no functional AI-salt taste receptor and no salt sensitivity to vanilloids and temperature. We conclude that the AI-salt taste receptor is derived from the VR-1 gene.

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عنوان ژورنال:
  • Chemical senses

دوره 30 Suppl 1  شماره 

صفحات  -

تاریخ انتشار 2005