[Binding of Rb86 by a microsomal fraction of bovine cerebral cortex cells]

The maximal binding of 86Rb was noted when ions of Mg, ATP and Na were present simultaneously. The availability of olytoriside (1-10(-4)M), CaCl2 (1-10(-3)M) and phospholipase A (1-10(-5)M) in the medium and the removal of Na and substitution of ATP for ADP decreased to a different extent the binding of 86Rb.