Acetylcholine Alcalo�ides Alkaloids Amino Acids, Peptides, and Proteins Behavior Behavior and Behavior Mechanisms Biochemical Phenomena Canaux ioniques Carrier Proteins Carrier proteins Cell Physiological Phenomena Cell physiology Cell receptors Cellular signal transduction Cellules Chemical Phenomena Chemicals and Drugs Comportement humain Compos�es h�et�erocycliques Congr�es Congres Congresses Cysteine Loop Ligand-Gated Ion Channel Receptors Effets physiologiques Electrophysiological Phenomena Glycoprot�eines membranaires Glycoproteins Habit Habits Habitude