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. 2023 Nov 4;13(11):1131. doi: 10.3390/metabo13111131

Table 2.

Receptors required for detecting acidic and basic compounds in vertebrates.

Category Stimuli Receptors/Cell Reference
Acid HCl, citric acid, and tartaric acid OTOP1/Type III TRCs [87,88,89]
Alkali NaOH and NH4Cl OTOP1 [60,90]