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  • Title: Snake venom toxins. The amino acid sequence of toxin Vi2, a homologue of pancreatic trypsin inhibitor, from Dendroaspis polylepis polylepis (black mamba) venom.
    Author: Strydom DJ.
    Journal: Biochim Biophys Acta; 1977 Apr 25; 491(2):361-9. PubMed ID: 857902.
    Abstract:
    The amino acid sequence of venom component Vi2, a protein of low toxicity from Dendroaspis polylepis polylepis venom was determined by automatic sequence analysis in combination with sequence studies on tryptic peptides. This protein, the most retarded fraction of this venom on a cation-exchange resin, is a homologue of bovine pancreatic trypsin inhibitor consisting of a single chain of 57 amino acid residues containing six half-cystine residues. The active site lysyl residue of bovine trypsin inhibitor is conserved in Vi2 although large differences are found in the rest of the molecule.
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