The voltage dependence of the decay of the excitatory postsynaptic current and the effect of concanavalin A at the crayfish neuromuscular junction.
In voltage clamped crayfish muscle fibers the time constant tau of decay of the EPSC was measured at different clamp potentials E. At 6 degrees C, the average potential dependence of tau is described by tau = 2.3 ms.eE/328 mV. tau was shorter in fast fibers than in slow ones. Concanavalin A supressed the potential dependence by tau, resulting in an increase in tau compared with the control, especially at high negative potentials.
D000818:Animals; D003400:Astacoidea; D003208:Concanavalin A / Q000494:pharmacology*; D004594:Electrophysiology; D066298:In Vitro Techniques; D009469:Neuromuscular Junction / Q000187:drug effects / Q000502:physiology*
D003208:Concanavalin A