title: Modulation of transmission in different electronic junctions by aminopyridine.
abstract: 4 distinct electronic inputs can be identified in amphibian motoneurons perfused with calcium-free solution containing manganese. The differential effect of 4-aminopyridine on different electronic junctions may reflect the peculiarities of molecular architecture of potassium channels in different electrically excitable presynaptic membranes.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D001001:Anura; D002118:Calcium / Q000494:pharmacology; D008345:Manganese / Q000494:pharmacology; D008564:Membrane Potentials / Q000187:drug effects; D009046:Motor Neurons / Q000187:drug effects*; D011725:Pyridines / Q000494:pharmacology*; D009435:Synaptic Transmission / Q000187:drug effects*
chemical_list: D011725:Pyridines; D008345:Manganese; D002118:Calcium