G protein-activated inward rectifier potassium channel G protein-activated inward rectifier potassium channel 2 IUPHARobj:435 potassium channel, inwardly rectifying subfamily J member 6 PR:000002003 KCNJ6 KATP2 KCNJ7 GIRK2 protein GIRK-2 A G protein-activated inward rectifier potassium channel that is a translation product of the human KCNJ6 gene or a 1:1 ortholog thereof. Category=gene. KATP-2 inward rectifier K(+) channel Kir3.2 PANTHER:PTHR11767:SF19 BIR1 W