	By blocking specifically the Kv4 channels, AmmTX3 reduces the A-type potassium current through these channels almost completely. A-type potassium currents can be generated by Kv1.4, Kv3.3, Kv3.4, all members of Kv4 and Erg3 channels. The influence of AmmTX3 on the overall A-type potassium currents hence depends on the specific channel types that mediate this current in the cell. For example, in the solitary nucleus, the A-type potassium current is Kv4-mediated. Therefore, presence of AmmTX3 in the solitary nucleus cells blocks the A-type potassium current almost completely. Similar effects have been found in the hippocampus, substantia nigra, and cerebellum granule cells of rats and mice.