(= a-latrotoxin; a-LTx)
Major toxin from Latrodectus spp. (1401 residues). Causes release of neurotransmitters from all synapses. An insect-specific toxin, a -latroinsectotoxin, is also present in the venom and has substantial homology and similar mode of action to a -latrotoxin.

Dictionary of molecular biology. 2004.

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