| BCR | B-cell receptor |
| BU | bottom-up |
| CDR | complementarity-determining region |
| ELISA | enzyme-linked immunosorbent assay |
| FR | framework region |
| Ig | immunoglobulin |
| IMGT | the international ImMunoGeneTics information system |
| LC-MS | liquid chromatography-mass spectrometry |
| mAb | monoclonal antibody |
| MD | middle-down |
| MS | mass spectrometry |
| PBMC | peripheral blood mononuclear cell |
| PTM | post-translational modification |
| SARS-CoV-2 | severe acute respiratory syndrome coronavirus 2 |
| TD | top-down |