Receptors, Purinergic P2X2Adenosine TriphosphatePotassium Channels, Inwardly RectifyingGlyburidePinacidilSulfonylurea CompoundsPotassium ChannelsK562 CellsInsulinH(+)-K(+)-Exchanging ATPaseAdenosine DiphosphateATP Synthetase ComplexesAdenosine TriphosphatasesVitamin KVitamin K 1Mitochondrial Proton-Translocating ATPasesKineticsReceptors, Purinergic P2HydrolysisMitochondrial ADP, ATP TranslocasesSodium-Potassium-Exchanging ATPaseCalcium