A cDNA clone encoding an inwardly-rectifying potassium channel subunit (Kir6.2) was isolated from an insulinoma cDNA library. The mRNA is strongly expressed in brain, skeletal muscle, cardiac muscle and in insulinoma cells, weakly expressed in lung and kidney and not detectable in spleen, liver or testis. Heterologous expression of Kir6.2 in HEK293 cells was only observed when the cDNA was cotransfected with that of the sulphonylurea receptor (SUR). Whole-cell Kir6.2/SUR currents were K+...Expand abstract
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- Copyright 1995 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved. Re-use of this article is permitted in accordance with the Terms and Conditions set out at http://www.elsevier.com/open-access/userlicense/1.0/
Cloning and functional expression of the cDNA encoding a novel ATP-sensitive potassium channel subunit expressed in pancreatic beta-cells, brain, heart and skeletal muscle.
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