Expression of Na(+)-K(+)-ATPase alpha- and beta-subunits along rat nephron: isoform specificity and response to hypokalemia

The activity of Na(+)-K(+)-adenosinetriphosphatase (Na(+)-K(+)-ATPase), the sodium pump, which drives active Na+ reabsorption along the nephron, varies over an order of magnitude, depending on the ...