Abstract
ATP-sensitive K+ (KATP) channels are recognized by their biophysical fingerprint, unique heteromultimeric structure, and distinct nucleotide-dependent regulation (Noma, 1983; Aguilar-Bryan and Bryan, 1999; Seino, 1999). These weakly inwardly rectifying, high-conductance, potassium-selective channels are kept closed by intracellular ATP and activated by intracellular ADP. Thereby, KATP channels set the membrane potential according to changes in the cellular metabolic state (Weiss and Venkatesh, 1993; O’Rourke et al., 1994; Dzeja and Terzic, 1998). KATP channels are distributed in the plasmalemma of various metabolically active tissues, including the heart (Noma, 1983), pancreatic β-cells (Ashcroft, 1996), skeletal (Vivaudou et al., 1991) and smooth (Quayle et al., 1997) muscle, and the brain (Spanswick et al., 1997). A related channel has been recognized in the inner membrane of mitochondria (Inoue et al., 1991; Paucek et al., 1992), underscoring the role of KATP channels in signaling networks that transduce intracellular metabolic events.
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Terzic, A., Vivaudou, M. (2001). Molecular Pharmacology of ATP-Sensitive K+Channels: How and Why?. In: Archer, S.L., Rusch, N.J. (eds) Potassium Channels in Cardiovascular Biology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1303-2_15
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