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The genomic DNA sequence encoding the scorpion toxin Amm VIII was amplified from genomic DNA of the scorpion Androctonus mauretanicus mauretanicus from Morocco, subcloned and sequenced. An intron, with a high A+T content (73.5%), split a Gly codon at the end of the precursor signal peptide and the consensus GT/AG splice junction was identified in the Amm VIII gene. This intron of only 166bp is the...
We report here the isolation by a two-step chromatographic procedure of two new toxins from the South American scorpion Tityus bahiensis. Their amino-acid sequences and some of their biological features were established. The two toxins have different biological properties. Toxin TbIT-I had almost no activity or pharmacological effects in vertebrate tissues whereas it was lethal to house flies (LD50...
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