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Identification of a novel 5-HTN (Nematoda) receptor from Ascaris suum muscle
J A Williams1, A M Shahkolahi, M Abbassi
1Department of Biological Sciences, University of North Texas, Denton 76203.
Abstract:
1. The abilities of various serotonergic drugs to bind with the 5-HT receptor of Ascaris suum muscle and to affect cyclic AMP levels in muscle tissue were examined. 2. Ligands which selectively interact with either the 5-HT1 or the 5-HT2 receptor in mammalian systems interact with the 5-HT receptor from A. suum muscle and increase cyclic AMP levels. 3. No binding of 5-HT3 ligands to 5-HT receptors from A. suum muscle was observed. 4. The 5-HT receptor of A. suum muscle should be called the 5-HTN (for Nematoda) receptor because its pharmacological and biochemical behaviors were different from those of mammalian 5-HT receptors.