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  • Title: High-level production of murine interleukin-5 (IL-5) utilizing recombinant baculovirus expression. Purification of the rIL-5 and its use in assessing the biologic role of IL-5 glycosylation.
    Author: Kunimoto DY, Allison KC, Watson C, Fuerst T, Armstrong GD, Paul W, Strober W.
    Journal: Cytokine; 1991 May; 3(3):224-30. PubMed ID: 1883961.
    Abstract:
    We describe here a recombinant baculovirus expression system useful for high level production of murine recombinant interleukin-5 (rIL-5). In addition, we describe a single-step technique of purification of the rIL-5 from the baculovirus-infected Sf9 cell supernatants, using an anti-IL-5 affinity column. The baculovirus-derived rIL-5 has physical properties and functional activities in various lymphoid cell assays similar to those of natural T cell-derived IL-5 and reacts with anti-IL-5 antibodies. Finally, the rIL-5 is similar to natural T cell-derived IL-5 in manifesting heterogeneous glycosylation; however, glycosylation does not appear to be necessary for biologic function, at least in a lymphoid cell proliferation assay.
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