Potassium-stimulated ATPase activity and hydrogen transport in gastric microsomal vesicles.

Abstract

The Mg2+-dependent, K+-stimulated ATPase of microsomes from pig gastric mucosa has been studied in relation to observed active H+ transport into vesicular space. Uptake of fluorescent dyes (acridine orange and 9-aminoacridine) was used to monitor the generated pH gradient. Freeze-fracture electron microscopy showed that the vesicular gastric microsomes have… (More)

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