| Angiopoietin-1 | 57.513 | UniProtKB |
| Angiopoietin-2 | 56.919 | UniProtKB |
| Angiostatin | 38 | Found via general search |
| Angiotensin-converting enzyme (ACE) | 149.715 | UniProtKB |
| Annexin A1 | 38.714 | UniProtKB |
| anti-EGFR IgG | 180 | Found via general search |
| Anti-HER2 IgA | 160 | Found via general search |
| Anti-HER2 IgG | 150 | Found via general search |
| Anti-SEA IgE (anti-staphylococcus enterotoxin A) | 27 | Found via general search |
| Anti-SEB IgE (anti-staphylococcus enterotoxin B) | 27 | Found via general search |
