girk|Activation and inhibition of G protein,youpp

G prgirkotein-gated inwardly rectifying potassium (GIRK) channels hyperpolarize neurons in response to activation of many different G protein-coupled receptors and thus control the excitability of neurons through GIRK-mediated self-inhibition, slow synaptic potentials and volume transmission.

The G protein-coupled inwardly rectifying potassium channels (GIRKs) are a family of lipid-gated inward-rectifier potassium ion channels which are activated (opened) by the signaling lipid PIP2 and a signal transduction cascade starting with ligand -stimulated G protein-coupled receptors (GPCRs). [1][2] GPCRs in turn release activated G-protein ...

G Protein-Coupled Inwardly-Rectifying Potassium Channels (GIRK channels) are channels found in the brain that play a crucial role in thegirk inhibitory effects of neurotransmitters.

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