| Luteinizing hormone (LH) | 33 | Found via general search |
| Lymphocyte activation gene 3 protein | 57.449 | UniProtKB |
| Lysozyme C | 16.537 | UniProtKB |
| M2BPGi (Mac-2 binding protein glycosylation isomer) | 90 | Found via general search |
| Macrophage mannose receptor 1 | 166.012 | UniProtKB |
| Malondialdehyde | 0.07206 | UniProtKB |
| MASP-1 | 79 | Found via general search |
| MASP-2 | 76 | Found via general search |
| Mast cell chymase | 30 | Found via general search |
| Mast cell tryptase | 31 | Found via general search |
