Selected article for: "detection specificity and IgG detection"
Author: Musicò, Angelo; Frigerio, Roberto; Mussida, Alessandro; Barzon, Luisa; Sinigaglia, Alessandro; Riccetti, Silvia; Gobbi, Federico; Piubelli, Chiara; Bergamaschi, Greta; Chiari, Marcella; Gori, Alessandro; Cretich, Marina
Title: SARS-CoV-2 epitope mapping on microarrays highlights strong immune-response to N protein region
  • Cord-id: h83qgmnq
  • Document date: 2020_11_9
    • ID: h83qgmnq
    Snippet: A workflow for SARS-CoV-2 epitope discovery on peptide microarrays is herein reported. The process started with a proteome-wide screening of immunoreactivity based on the use of a high-density microarray followed by a refinement and validation phase on a restricted panel of probes using microarrays with tailored peptide immobilization through a click-based strategy. Progressively larger, independent cohorts of Covid-19 positive sera were tested in the refinement processes, leading to the identif
    Document: A workflow for SARS-CoV-2 epitope discovery on peptide microarrays is herein reported. The process started with a proteome-wide screening of immunoreactivity based on the use of a high-density microarray followed by a refinement and validation phase on a restricted panel of probes using microarrays with tailored peptide immobilization through a click-based strategy. Progressively larger, independent cohorts of Covid-19 positive sera were tested in the refinement processes, leading to the identification of immunodominant regions on SARS-CoV-2 Spike (S), Nucleocapsid (N) protein and Orf1ab polyprotein. A summary study testing 50 serum samples highlighted an epitope of the N protein (region 155-171) providing 92% sensitivity and 100% specificity of IgG detection in Covid-19 samples thus being a promising candidate for rapid implementation in serological tests.

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