Amiloride increases the sensitivity of particulate guanylate cyclase to atrial natriuretic factor.

Abstract

The natriuretic agent amiloride induces a shift of the dose-response curve of particulate guanylate cyclase to atrial natriuretic factor (ANF) to the left. The ANF concentration for half-maximal activation of guanylate cyclase is shifted from 20 to 3 nM in the presence of 100 microM amiloride. This effect is observed with GTP*Mn2+, but not with GTP*Mg2+ as… (More)

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