Title : Differential effects of [3H]nemonapride and [3H]spiperone binding on human dopamine D4 receptors.

Pub. Date : 1995 Feb 17

PMID : 7777184






4 Functional Relationships(s)
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1 Differential effects of [3H]nemonapride and [3H]spiperone binding on human dopamine D4 receptors. Spiperone Rho GDP dissociation inhibitor beta Homo sapiens
2 We compared some binding parameters of [3H]nemonapride and [3H]spiperone in human dopamine D4 (hD4) receptors with three different numbers of tandem repeat units. Spiperone Rho GDP dissociation inhibitor beta Homo sapiens
3 Although both of the radioligands showed similar affinity constants for each hD4 receptor variant, the maximal number of binding sites labeled by [3H]nemonapride was approximately 1.35-fold higher than that by [3H]-spiperone for all variants. Spiperone Rho GDP dissociation inhibitor beta Homo sapiens
4 Estimated Ki values for the inhibition of [3H]nemonapride binding by a series of dopaminergic ligands were highly correlated to respective values obtained for the inhibition of [3H]spiperone binding to each hD4 receptor. Spiperone Rho GDP dissociation inhibitor beta Homo sapiens