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The Taste of Cats

By: Nidal Babaa Bsci338C Dr. Carleton. The Taste of Cats. The pleasant tastes are mediated by a family of three T1R receptors that assemble in pairs. Diverse molecules that lead to a sensation of sweet bind to a receptor formed from T1R2 and T1R3 subunits .

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The Taste of Cats

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  1. By: Nidal Babaa Bsci338C Dr. Carleton The Taste of Cats

  2. The pleasant tastes are mediated by a family of three T1R receptors that assemble in pairs. Diverse molecules that lead to a sensation of sweet bind to a receptor formed from T1R2 and T1R3 subunits. Cats have both genes present, yet still cannot taste sweetness. Background

  3. Xia Li, along with her collaborator Dr. Joseph Brand, wanted to figure out why cats are cannot taste sweets. She compared sweet receptor genes in cats with the sequenceand structure of the same genes in dogs, humans, mice and rats. Research

  4. Linda Bartoshuk also explored the unique taste of cats. She tested the effect that adding sucrose to water had on its taste to cats. She used nine cats and tested them on two experiments Research Continued..

  5. Xia Li found that the cat Tas1r3 gene showed high similarity with those of dogs,humans, mice and rats. Concluded that cat Tas1r3is an expressed, functional receptor. While catTas1r2 is an unexpressed pseudo gene. Results

  6. The results of the first part of her research showed that the cats ingested nearly equal amounts of water and sucrose solution at every concentration tested. The results of the second part of her research showed that the cats strongly preferred the sucrose to the weak NaCl solution instead of water. Results Continued…

  7. Theory: perhaps some cats can use their Tas1r3 receptor to taste high concentrations of sugar Remaining Questions

  8. The End

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