Receptors, Purinergic P2X3

**Definition:** A purinergic P2X neurotransmitter receptor involved in sensory signaling of TASTE PERCEPTION, chemoreception, visceral distension, and NEUROPATHIC PAIN. The receptor comprises three P2X3 subunits. The P2X3 subunits are also associated with P2X2 RECEPTOR subunits in a heterotrimeric receptor variant.

**Tree numbers:** - D12.776.157.530.400.400.750.300 - D12.776.543.550.450.500.600.300 - D12.776.543.585.400.500.600.300 - D12.776.543.750.695.700.720.250.300 - D12.776.543.750.720.700.720.500.300

**Synonyms:** - P2X3 Purinoceptor - P2X3 Receptor - Purinergic Receptor P2X, Ligand-Gated Ion Channel, 3