Purification and molecular characterization of neurotransmitter receptors.

These data indicate a number of similarities between the neurotransmitter receptors of different pharmacological classes. We are pursuing the hypothesis that the neurotransmitter receptors may have evolved from one another and contain constant regions (eg, adenylate cyclase and calcium channel interaction sites) and variable regions (eg, neurotransmitter- or hormone-binding sites). It is clear that monoclonal antibodies are keys to this end.