Abstract
A cDNA encoding the Simian immunodeficiency virus type (SIV mac) Gag capsid protein was introduced into Solanum tuberosum cells by Agrobacterium tumefaciens-mediated transformation methods. The gag gene was detected in the genomic DNA of transformed leaf tissues by PCR DNA amplification. Immunoblot analysis of transformed potato plant extracts with anti-Gag monoclonal antibody showed that biologically active Gag protein was synthesized in transformed tuber tissues. Based on ELISA results, recombinant Gag protein made up 0.006–0.014% of total soluble tuber protein. The synthesis of SIV Gag in transformed potato tubers opens the way for development of Gag-based edible plant vaccines for protection against SIV and potentially HIV-1 infection.
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