Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/18715
Tipo: Artigo
Título: A new TRAF-like protein from B. oleracea ssp. botrytis with lectin activity and its effect on macrophages
Autor(es): Duarte, Christiane E.M.
Abranches, Monise V.
Silva, Patrick F.
Paula, Sérgio O. de
Cardoso, Silvia A.
Oliveira, Leandro L.
Abstract: Lectins are involved in a wide range of biological mechanisms, like immunomodulatory agent able to activate the innate immunity. In this study, we purified and characterized a new lectin from cauliflower (Brassica oleracea ssp. botrytis – BOL) by three sequential chromatographic steps and confirmed the purity by SDS-PAGE. Additionally, we evaluated the role of the lectin in innate immunity by a phagocytosis assay, production of H2O2 and NO. BOL was characterized like a non-glycosylated protein that showed a molecular mass of ∼34 kDa in SDS-PAGE. Its N-terminal sequence (ETRAFREERPSSKIVTIAG) did not reveal any similarity to the other lectins; nevertheless, it showed 100% homology to a putative TRAF-like protein from Brassica rapa and Brassica napus. This is a first report of the TRAF-protein with lectinic activity. The BOL retained its complete hemagglutination activity from 4 °C up to 60 °C, with stability being more apparent between pH 7.0 and 8.0. Moreover, the lectin was able to stimulate phagocytosis and induce the production of H2O2 and NO. Therefore, BOL can be explored as an immunomodulatory agent by being able to activate the innate immunity and favor antigen removal.
Palavras-chave: Agglutinin
Lectin
Innate immunity
Editor: International Journal of Biological Macromolecules
Tipo de Acesso: Open Access
URI: https://doi.org/10.1016/j.ijbiomac.2016.10.061
http://www.locus.ufv.br/handle/123456789/18715
Data do documento: 19-Out-2016
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