Activation of Kir 3 channels occurs after binding of G beta gamma subunits of GPCR. Activation of Kir3/GIRK leads to K+ efflux. The dissociation of GPCR into G alpha and G beta gamma subunits is activated by the activation of GABA B receptor by GABA binding.
Cramer, NP, Siarey, RJ, Stoffel, M, Galdzicki, Z, Best, TK
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