Interaction of the cytosolic domains of the Kir6.2 subunit of the K(ATP) channel is modulated by sulfonylureas.
The NH(2)- and COOH-termini of the ATP-sensitive potassium (K(ATP)) channel pore-forming subunit, Kir6.2, both lie intracellularly and interact with one another. To study this interaction, cyan fluorescent protein (CFP) and yellow fluorescent protein (YFP) were fused to the NH(2)- and COOH-termini of Kir6.2, respectively (CFP-Kir6.2-YFP). These fluorescent proteins have sufficient spectral overlap to allow distance-dependent fluorescence resonance energy transfer (FRET). When CFP-Kir6.2-YFP w...Expand abstract
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