| Metalloproteinase inhibitor 2 | 24.399 | UniProtKB |
| Metalloproteinase inhibitor 1 | 23.171 | UniProtKB |
| Mercuric Chloride | 0.2715 | UniProtKB |
| Melanoma-associated antigen 1 | 34.342 | UniProtKB |
| MCP-3 [Monocyte-Chemotactic Protein 3] | 11.2 | UniProtKB |
| MCP-1 | 11.025 | UniProtKB |
| MCAF | 11.025 | UniProtKB |
| Matrix metalloproteinase-9 | 78.458 | UniProtKB |
| Matrix metalloproteinase 7 | 5.632 | UniProtKB |
| Mannose-binding protein C | 26.144 | UniProtKB |
