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  • Title: Expression of the human foamy virus bel-1 transactivator in insect cells.
    Author: Hong L, Bräutigam S, Rethwilm A.
    Journal: Virus Res; 1993 Oct; 30(1):89-95. PubMed ID: 8266722.
    Abstract:
    The human foamy virus (HFV) bel-1 transactivator protein was expressed in insect cells by a recombinant baculovirus. For the generation of the recombinant baculovirus, Acbel-1, the bel-1 gene of an HFV mutant was used, that bears truncations in the bel-1 overlapping bel-2 open reading frame. Acbel-1 infected Sf9 cells produced high amounts of recombinant protein of the same electrophoretic mobility (36 kD) as bel-1 expressed in mammalian cells. The baculovirus expressed bel-1 protein was readily identified by a polyclonal rabbit serum directed against bel-1 in immunoblot assay. As in mammalian cells, bel-1 was predominantly localized to the nucleus of Acbel-1 infected insect cells. The baculovirus expressed bel-1 protein will be of use to determine the action of this novel viral transactivator more precisely.
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