Binding of anti-acetylcholine receptor antibodies inhibits the acetylcholine receptor mediated cation flux.


A fast kinetics, spectroscopic technique has been applied to the study of the transient cation flux associated to the binding of cholinergic agonist to native acetylcholine receptor (AcChR)-rich membrane vesicles in presence of anti-AcChR antibodies. The technique is based on the collisional quenching of an intravesicularly trapped fluorophore by externally… (More)


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