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The Kir6.1 (KCNJ8) gene is essential in membrane function as it encodes an inward-rectifier potassium channel protein that is 424 amino acids long and has a mass of nearly 48 kDA. Dysfunctions in the Kir6.1 gene may be a cause of J-wave syndromes and sudden infant death syndrome (SIDS). Research is investigating its role in various diseases such as retinitis, hypoxia, pancreatitis, myocardial infarction, spasticity, leiomyoma, acute myocardial infarction, and prinzmetal angina. The Kir6.1 gene plays a significant role in ATP sensitive potassium channels, SIDS susceptibility pathways, dopamine feedback into cAMP pathway, and the CFTR-dependent regulation of ion channels in airway epithelium. It interacts with other genes such as KCNJ2, ABCC8, ABCC9, and KCNJ11.
