Cardiac glycosides are widely used to increase the strength of contraction of the heart because it inhibits this process by raising the intracellular calcium concentration.
Recent experiments have shown that this mechanism can relay extracellular ouabain binding signaling into compartments of the cell through the regulation of tyrosine phosphorylation of proteins like EGFR; in general, its serves as a signal-transducing  receptor for cardiotonic steroids. Cardiac glycosides are widely used to increase the strength of contraction of the heart because it inhibits this process by raising the intracellular calcium concentration. cAMP downregulates this process, in which the dephosphorylation of ATP causes the exchange of three intracellular ions for two extracellular ones. Jens Skou discovered, FTP, which enzyme in the cell membrane that deals with the active transport of two group 1 elements?
Recent experiments have shown that this mechanism can relay extracellular ouabain binding signaling into compartments of the cell through the regulation of tyrosine phosphorylation of proteins like EGFR; in general, its serves as a signal-transducing  receptor for cardiotonic steroids.
sodium-potassium pump [accept any equivalents with Na+ for sodium and K+ for potassium; prompt on partial name or Na+/K+-ATPase or NAKA]