Ifenprodil discriminates subtypes of the N-methyl-D-aspartate receptor: selectivity and mechanisms at recombinant heteromeric receptors.

Abstract

The effects of the atypical N-methyl-D-aspartate (NMDA) receptor antagonist ifenprodil were investigated by voltage-clamp recording of Xenopus oocytes expressing heteromeric NMDA receptors from cloned NR1 and NR2 subunit RNAs. In oocytes voltage-clamped at -70 mV, ifenprodil inhibited NMDA-induced currents at NR1A/NR2B receptors with high affinity (IC50 = 0… (More)

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