Phylogeny of metalloproteases form Hemiscorpius lepturus scorpion venom
Phylogeny of metalloproteases form Hemiscorpius lepturus scorpion venom
Nastaran Mohseni,1Fatemeh Kazemi-Lomedasht,2,*
1. Biotechnology Research Center, Venom and Biotherapeutics Molecules Laboratory, Pasteur Institute of Iran, Tehran, Iran 2. Biotechnology Research Center, Venom and Biotherapeutics Molecules Laboratory, Pasteur Institute of Iran, Tehran, Iran
Introduction: Hemiscorpius lepturus is a dangerous scorpion and referred to health concern issue in Khuzestan, Iran. The venom of H.lepturus is cytotoxic and its effect is similar to spider Loxosceles reclusa. Metalloproteinases are the important class of enzymes in the venom that has hemorrhagic activity. The early fi nding suggests the existence of metalloproteases in the transcriptome of venom gland of H.lepturus.
Methods: Phylogenetic analysis was accomplished to reveal the evolutionary relationship of identifi ed metalloproteases. The phylogenetic tree was constructed by Molecular Evolutionary Genetics Analysis software and neighbor-joining method.
Results: Results showed among three sequences, two metalloproteinases named HLMP1 and HLMP3 of H.lepturus were most close to spider P. tepidariorum. The third sequence named HLMP2 was different and formed an independent clade in the phylogenetic tree.
Conclusion: The results suggest that the sequence of metalloproteases in the venom component of H.lepturus is similar to the spider than the scorpion.