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Title: Preparation and properties of a neurotoxin purified from the venom of black widow spider (Latrodectus mactans tredecimguttatus). Author: Grasso A. Journal: Biochim Biophys Acta; 1976 Aug 09; 439(2):406-12. PubMed ID: 952966. Abstract: A neurotoxin of the venom of the spider Latrodectus mactans tredecimguttatus, has been prepared in a homogeneous form and examined by a variety of techniques. The protein has a molecular weight of 130 000 and its toxicity in mice is about 49 000 LD50 mg pure protein/g body weight. The toxin releases norepinephrine from synaptosomes prepared from rat brain and shows most of the toxic effects of the crude venom preparation.[Abstract] [Full Text] [Related] [New Search]