Figure 8From: A link of Ca2+ to cAMP oscillations in Dictyostelium: the calmodulin antagonist W-7 potentiates cAMP relay and transiently inhibits the acidic Ca2+-storeInhibition of ATP-dependent vesicular acidification by CaM antagonists. Determination of ATP-dependent acidification was performed as described in Material and Methods. Control acidification amounted to 20 relative fluorescence units. One out of three independent experiments is shown.Back to article page