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The inwardly rectifying potassium channel Kir6.2 is the pore-forming subunit of the ATP-sensitive potassium (K(ATP)) channel, which controls insulin secretion by coupling glucose metabolism to membrane potential in beta-cells. Loss of channel function because of mutations in Kir6.2 or its associated
Congenital hyperinsulinism is the most common cause of persistent hypoglycaemia in infancy. Early surgical intervention is usually required to prevent brain damage. The prevention of the transmission to the offspring is important in families carrying the mutated gene. Preimplantation genetic
Closure of ATP-sensitive potassium channels in pancreatic islet beta-cells initiates a cascade of events that leads to insulin secretion. beta-Cell ATP-sensitive potassium currents can be reconstituted by coexpression of the inward rectifier Kir6.2 and the sulfonylurea receptor (SUR), a member of