Abstract
Organophosphate and other ligands were examined for binding on the membrane-bond nicotinic receptor at three conformational states. Soman (pinacolyl methylphosphonofluoridate), sarin (isopropyl methylphosphonofluoridate, tabun (ethyl N-dimethylphosphoramidocyanidate) and phencyclidine did not show any effect on the binding of [25I]α-cobrotoxin to the nicotinic receptor. However, VX, O-ethyl-S-(2-diisopropylaminoethyl) methylphosphonothiolate, at concentrations higher than 10 umol/L exhibited profound inhibition on the equilibrium binding rates in a concentration-dependent manner. Agonist nicotine and antagonist d-tubocurarine also showed significant inhibitions.
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© 1995 Springer Science+Business Media New York
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Chi, M., Sun, M. (1995). Action of Organophosphate Anticholinesterases on the Three Conformational States of Nicotinic Receptor. In: Tang, L.C., Tang, S.J. (eds) Neurochemistry in Clinical Application. Advances in Experimental Medicine and Biology, vol 363. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1857-0_9
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DOI: https://doi.org/10.1007/978-1-4615-1857-0_9
Publisher Name: Springer, Boston, MA
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