ArticleImmunologic research2026
Fine specificity of antibodies to SARS-CoV-2 nucleoprotein in patients with COVID-19.
Article in Immunologic research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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9 authors.
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Abstract
The production of antibodies against viral structural proteins such as the spike (S) and the nucleocapsid (N) is a hallmark of SARS-CoV-2 infection. The N protein contains several immunogenic regions. In this work we analysed epitope specificity and avidity of anti-N antibodies in COVID-19 patients. Eighty-nine COVID-19 patients were recruited. IgG, IgA, IgM antibodies to recombinant N protein and to 6 different peptides containing predicted B epitopes were measured by ELISA. Antibody avidity was evaluated by chaotropic ELISA. Anti-N IgG, IgA, and IgM were detected in 59%, 41% and 30% respectively; in 11% cases anti-N IgG are the only antibodies present in COVID patients. IgG and IgA anti-N antibodies levels correlate with levels of IL-6 and inversely with PaO
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