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  • Title: [Expression of foreign gene by cysteine proteinase null recombinant baculovirus].
    Author: Likhoradova OA, Ogaĭ ID, Podpisnova MM, Slack JM, Azimova ShS.
    Journal: Mol Biol (Mosk); 2008; 42(2):370-7. PubMed ID: 18610846.
    Abstract:
    The baculovirus expression vector systems (BEVS) are broadly used for producing foreign proteins in lepidopteran larvae. Most commercial BEVS are engineered to insert foreign genes into the polyhedrin (polh) locus and lack the polh gene. These viruses cannot produce occlusion bodies and are inconvenient for per os inoculation of larvae. Current knowledge in baculovirus genomics makes it possible to engineer BEVS into other parts of the virus genome. In our work, we have expressed recombinant M-HBsAg (middle surface antigen of human hepatitis B) in the baculovirus construct, rBmNPV-Deltav-cath-M-HBsAg, inserting foreign gene into the v-cath locus of the Bombyx mori nucleopolyhedrovirus (BmNPV) such that the v-cath gene is deleted and the native polh gene is retained. Silkworm larvae were infected per os and M-HBsAg was observed to be abundantly produced at a very late stage of infection.
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