Sweet taste in man: a review.

Area of Science:

• Molecular biology
• Neuroscience
• Food science

Background:

• The molecular mechanisms of sweet taste perception are crucial for the food industry and consumer health.
• Developing sweeteners with fewer adverse health effects necessitates understanding sweet taste reception.

Purpose of the Study:

• To review the current understanding of sweet taste receptor mechanisms, from historical theories to recent advancements.
• To explore the structural and functional aspects of the human sweet receptor and its interaction with various ligands.

Main Methods:

• Review of existing literature on sweet taste theories, receptor structure, and function.
• Discussion of homology modeling, chemoreception studies, and signal transduction pathways.
• Analysis of allosteric function possibilities and implications of genetic variations.

Main Results:

• The human sweet receptor is identified as a dimeric G-protein coupled receptor (T1R2 and T1R3 subunits).
• Detailed structural models have advanced beyond earlier theories like AH-B.
• Research covers non-protein and protein ligands, allosteric modulation, and genetic variations.

Conclusions:

• The identification of the T1R2/T1R3 receptor provides significant insight into sweet taste transduction.
• Further research into receptor function, ligand binding, and genetic variations can guide the development of novel sweeteners.
• Understanding these molecular mechanisms has broad implications for food science and public health.