| Allocystathionine | 0.22226 | UniProtKB |
| Allantoin | 0.15812 | UniProtKB |
| Albuterol | 0.23931 | UniProtKB |
| Albumin | 66.5 | Found via general search |
| Alanine aminotransferase 1 | 54.637 | UniProtKB |
| ALA (alpha-linolenic acid) | 0.2784 | UniProtKB |
| A-FABP | 20 | Found via general search |
| Advanced glycosylation end product-specific receptor | 42.803 | UniProtKB |
| Adrenocorticotropic hormone (ACTH) | 4.541 | Found via general search |
| Adipsin | 25 | Found via general search |