Opening of Low Conductance Potassium Channels

Stable Identifier
Reaction [omitted]
Mus musculus
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Opening of Low Conductance Potassium Channels

Epinephrine causes hyperpolarization of pancreatic beta cells in mice by activating (opening) an unidentified potassium channel. In rat pancreatic beta cells this channel appears to be ATP-sensitive, but a knockout of the mouse ATP-sensitive potassium channel does not abolish the effect of epinephrine on potassium conductance.

Literature References
PubMed ID Title Journal Year
1898674 Activation by adrenaline of a low-conductance G protein-dependent K+ channel in mouse pancreatic B cells

Rorsman, P, Bokvist, K, Ammälä, C, Arkhammar, P, Berggren, PO, Larsson, O, Wåhlander, K

Nature 1991
14613926 Epinephrine-induced hyperpolarization of islet cells without KATP channels

Sieg, A, Su, J, Muñoz, A, Buchenau, M, Nakazaki, M, Aguilar-Bryan, L, Bryan, J, Ullrich, S

Am J Physiol Endocrinol Metab 2004
18162464 Both G i and G o heterotrimeric G proteins are required to exert the full effect of norepinephrine on the beta-cell K ATP channel

Zhao, Y, Fang, Q, Straub, SG, Sharp, GW

J Biol Chem 2008
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