[ATP level in synaptosomes--a determining factor of the functional activity of ion channels induced by alpha-latrotoxin].
1988
: The paper deals with characteristics of relationship between synaptosomal calcium permeability induced by alpha-latrotoxin and cytosolic concentration of ATP. It is shown that reagents decreasing the ATP level in the synaptosomes (monoiodoacetate, papaverine) inactivate the toxin-induced ionic fluxes and, on the contrary, reagents increasing the ATP level in synaptosomes enhance the toxin-induced calcium influx. The treatment of synaptosomes with inhibitors of phosphodiesterase of cAMP and cAMP-dependent protein kinase has no effect on the alpha-latrotoxin-induced calcium influx.
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