| Alpha2-macroglobulin (a2M) | 163.291 | UniProtKB |
| Alpha-2 globulin | 52 | Found via general search |
| Alpha1-fetoprotein transcription factor short variant | 36.41 | UniProtKB |
| Alpha-1-antitrypsin polymer | 480 | Found via general search |
| Alpha-1-antitrypsin | 46.737 | UniProtKB |
| Alpha-1-antichymotrypsin | 47.651 | UniProtKB |
| Alpha-1 globulin | 54 | Found via general search |
| ALP (Alkaline phosphatase) | 86 | Found via general search |
| Allocystathionine | 0.22226 | UniProtKB |
| Allantoin | 0.15812 | UniProtKB |
