G Protein-Coupled Inwardly-Rectifying Potassium Channels

**Definition:** A family of inwardly-rectifying potassium channels that are activated by PERTUSSIS TOXIN sensitive G-PROTEIN-COUPLED RECEPTORS. GIRK potassium channels are primarily activated by the complex of GTP-BINDING PROTEIN BETA SUBUNITS and GTP-BINDING PROTEIN GAMMA SUBUNITS.

**Tree numbers:** - D12.776.157.530.400.600.450.500 - D12.776.543.550.450.750.450.500 - D12.776.543.585.400.750.450.500

**Synonyms:** - Kir3 Potassium Channels - GIRK Potassium Channels - G Protein-Activated Potassium Channels