The simulator demonstrates the two distinct molecular pathways of taste transduction, the GPCR-gustducin-TRPM5 cascade for sweet, umami, and bitter versus the direct ENaC and OTOP1 ion channel pathways for salty and sour, alongside real-time receptor cell adaptation and recovery dynamics during sustained or repeated stimulation.
Select a taste category to see its specific molecular pathway animate from stimulus binding through to taste cell depolarization. Apply a sustained stimulus and watch the firing rate trace rise then decay as the cell adapts, then remove the stimulus and observe the recovery period before firing sensitivity returns to baseline.
Taste category selector (sweet, umami, bitter, salty, sour); stimulus intensity slider; stimulus duration and on/off toggle; adaptation and recovery rate display; pathway animation speed control.
Amiloride, a drug that blocks ENaC channels, can specifically dull salty taste in experiments while leaving sweet, umami, bitter, and sour perception completely unaffected, direct evidence that salty taste relies on its own dedicated ion channel rather than sharing machinery with the other basic tastes.
The simulator demonstrates the two distinct molecular pathways of taste transduction, the GPCR-gustducin-TRPM5 cascade for sweet, umami, and bitter versus the direct ENaC and OTOP1 ion channel pathways for salty and sour, alongside real-time receptor cell adaptation and recovery dynamics during sustained or repeated stimulation.
The simulator demonstrates the two distinct molecular pathways of taste transduction, the GPCR-gustducin-TRPM5 cascade for sweet, umami, and bitter versus the direct ENaC and OTOP1 ion channel pathways for salty and sour, alongside real-time receptor cell adaptation and recovery dynamics during sustained or repeated stimulation.
Select a taste category to see its specific molecular pathway animate from stimulus binding through to taste cell depolarization. Apply a sustained stimulus and watch the firing rate trace rise then decay as the cell adapts, then remove the stimulus and observe the recovery period before firing sensitivity returns to baseline.
Amiloride, a drug that blocks ENaC channels, can specifically dull salty taste in experiments while leaving sweet, umami, bitter, and sour perception completely unaffected, direct evidence that salty taste relies on its own dedicated ion channel rather than sharing machinery with the other basic tastes.