Supplementary Materials

The PDF file includes:

  • Fig. S1. Age, duration of symptoms, and sex do not correlate with plasma IgA or IgG neutralization ability.
  • Fig. S2. Analysis of antibody somatic hypermutation.
  • Fig. S3. Analysis of antibody CDR3 length.
  • Fig. S4. Analysis of antibody CDR3 hydrophobicity.
  • Fig. S5. Frequency distributions of human V genes.
  • Fig. S6. Binding and neutralizing activity of anti-SARS-CoV-2 RBD IgA and IgM monomers.
  • Fig. S7. Biolayer interferometry experiment.
  • Fig. S8. Purification of Dimeric IgA by Size Exclusion Chromatography.
  • Fig. S9. Neutralizing activity of monoclonal monomeric and dimeric IgA antibodies.
  • Table S1. Inhibitory concentrations of monoclonal antibodies from isotype shared clones.
  • Table S2. Inhibitory concentrations of monoclonal IgA monomers and dimers.

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Other Supplementary Material for this manuscript includes the following: