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Comparison of two eukaryotic systems for the expression of VP6 protein of rotavirus specie A: transient gene expression in HEK293-T cells and insect cell-baculovirus system

The VP6 protein of rotavirus A (RVA) is a target antigen used for diagnostic assays and also for the development of new RVA vaccines. We have compared the expression of VP6 protein in human embryonic kidney (HEK293-T) cells with results obtained using a well-established insect cell-baculovirus system. The recombinant VP6 (rVP6) expressed in HEK293-T cells did not present degradation and also retained the ability to form trimers. In the insect cell-baculovirus system, rVP6 was expressed at higher levels and with protein degradation as well as partial loss of ability to form trimers was observed. Therefore, HEK293-T cells represent a less laborious alternative system than insect cells for expression of rVP6 from human RVA.

Authors:   Haroldo Cid da Silva Junior, Sérgio da Silva e Mouta Junior, Marcos César Lima de Mendonça, Mirian Claudia de Souza Pereira, Alanderson da Rocha Nogueira, Maria Luiza Borges de Azevedo, José Paulo Gagliardi Leite, Márcia Terezinha Baroni de Moraes
Journal:   Biotechnology Letters
Year:   2012
DOI:   10.1007/s10529-012-0946-z
Publication date:   11-05-2012

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