description
Inwardly rectifying potassium transport are tetrameric channels that are found in kidney in the nephron. Kir 1.1 works as a homotetramer, however, Kir 4.1 and 5.1 work as heterotetramers. These channels transport K+ from cytosol to the lumen of the tubules

external resources
NCBI:1268827
REACTOME:R-HSA-1296067
PUBMED:19221509

genes
KCNJ1 , KCNJ10 , KCNJ16 ,