A inward rectifier potassium channel complex. Homo- or heterotetramer composed of subunits of the eukaryotic Kir2 protein family. Plays a key role in maintaining the correct resting potential in eukaryotic cells.
Source:PMID:16834334,
GOC:bhm
Comment
An example of this is Kcnj2 in mouse (P35561) in PMID:16834334 (inferred from direct assay).