title: Polypeptide toxins as tools to study voltage-sensitive Na+ channels.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001921:Brain / Q000378:metabolism; D007473:Ion Channels / Q000187:drug effects / Q000502:physiology*; D007700:Kinetics; D008564:Membrane Potentials / Q000187:drug effects; D008565:Membrane Proteins / Q000378:metabolism; D009498:Neurotoxins / Q000494:pharmacology; D011487:Protein Conformation; D011950:Receptors, Cholinergic / Q000378:metabolism; D012604:Scorpion Venoms / Q000494:pharmacology; D012964:Sodium / Q000378:metabolism*; D015222:Sodium Channels; D013329:Structure-Activity Relationship; D014118:Toxins, Biological / Q000494:pharmacology*
chemical_list: D007473:Ion Channels; D008565:Membrane Proteins; D009498:Neurotoxins; D011950:Receptors, Cholinergic; D012604:Scorpion Venoms; D015222:Sodium Channels; D014118:Toxins, Biological; C029574:scorpion toxin receptor; C003609:tityustoxin; D012964:Sodium