Latrotoxin
A latrotoxin is a high-molecular mass neurotoxin found in the venom of Latrodectus spiders (commonly known as widow spiders). Latrotoxin are the main active components of the venom and are responsible for the symptoms of latrodectism.
The following latrotoxins have been described: five insecticidal toxins, termed α, β, γ, δ and ε-latroinsectotoxins, one vertebrate-specific neurotoxin, α-latrotoxin, [...]