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  • Title: Purification and characterization of a low molecular weight multifunctional cytotoxic phospholipase A2 from Russell's viper venom.
    Author: Maity G, Mandal S, Chatterjee A, Bhattacharyya D.
    Journal: J Chromatogr B Analyt Technol Biomed Life Sci; 2007 Jan 15; 845(2):232-43. PubMed ID: 16997639.
    Abstract:
    A basic toxin from Russell's viper venom of 7.2 kDa (RVV-7) has been purified to homogeneity after partial unfolding by 4 M urea followed by filtration through Centricon-30 membrane. Its N-terminal sequence showed strong homology with snake venom cytotoxins. Cytotoxic activity of RVV-7 has been demonstrated with B16F10 melanoma cells. PLA2 activity was observed in cytotoxin (CX3) from Naja kauthia bearing sequence homology with RVV-7. Phospholipase A2 and trypsin inhibitory activities were also observed with RVV-7. Chemical modification and inhibition studies suggested independent functional sites for these activities. A qualitative assessment of tumor growth inhibition by RVV-7 has been made.
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