title: Single chain and dichain forms of neurotoxin in type F Clostridium botulinum culture.
mesh_terms: D001905:Botulinum Toxins / Q000302:isolation & purification; D004591:Electrophoresis, Polyacrylamide Gel; D046911:Macromolecular Substances; D008623:Mercaptoethanol; D008970:Molecular Weight; D009498:Neurotoxins / Q000302:isolation & purification; D014357:Trypsin
chemical_list: D046911:Macromolecular Substances; D009498:Neurotoxins; D008623:Mercaptoethanol; D014357:Trypsin; D001905:Botulinum Toxins