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Báo cáo khoa học: Studies of the ATPase activity of the ABC protein SUR1
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The ATP-sensitive potassium (KATP) channel couples glucose metabolism to insulin secretion in pancreatic b-cells. It comprises regulatory sulfonyl-urea receptor 1 and pore-forming Kir6.2 subunits. Binding and⁄or hydro-lysis of Mg-nucleotides at the nucleotide-binding domains of sulfonylurea receptor 1 stimulates channel opening and leads to membrane hyperpolari-zation and inhibition of insulin secretion.
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