treatment of slices of cerebral cortex with increasing concentrations of the irreversible alpha 1-adrenergic receptor antagonist phenoxybenzamine caused a parallel inactivation of specific 125ibe binding sites and norepinephrine-induced [ 3h ] inositol phosphate accumulation , although approximately 20 % of the binding sites remained after abolition of the inositol response .
C0021554
inositol phosphate
C0021547
inositol