title: Effects and mechanisms of polypeptide neurotoxins that act presynaptically.
mesh_terms: D000818:Animals; D001740:Black Widow Spider; D001905:Botulinum Toxins / Q000032:analysis / Q000494:pharmacology; D002412:Cations / Q000494:pharmacology; D002490:Central Nervous System / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D006801:Humans; D009132:Muscles / Q000648:ultrastructure; D009469:Neuromuscular Junction / Q000187:drug effects; D009498:Neurotoxins / Q000494:pharmacology*; D010455:Peptides / Q000494:pharmacology*; D012910:Snake Venoms / Q000494:pharmacology; D013111:Spider Venoms / Q000032:analysis / Q000378:metabolism / Q000494:pharmacology; D013569:Synapses / Q000187:drug effects*; D009435:Synaptic Transmission / Q000187:drug effects; D013574:Synaptosomes / Q000187:drug effects; D013744:Tetanus Toxin / Q000494:pharmacology
chemical_list: D002412:Cations; D009498:Neurotoxins; D010455:Peptides; D012910:Snake Venoms; D013111:Spider Venoms; D013744:Tetanus Toxin; D001905:Botulinum Toxins