| Collagen alpha-1(III) chain | 138.564 | UniProtKB |
| Collagen alpha-1(II) chain | 141.785 | UniProtKB |
| Coagulation factor X | 54.732 | UniProtKB |
| Chymase | 27.325 | UniProtKB |
| Chorionic somatomammotropin hormone 1 | 25.02 | UniProtKB |
| Chorionic gonadotropin (hCG) | 37.5 | 8408467 |
| Choose MDC instead! MDC [Macrophage-Derived Chemokine] | 10.625 | UniProtKB |
| Chitinase-3-like protein 1 | 42.625 | UniProtKB |
| Ceruloplasmin | 122.205 | UniProtKB |
| Cellular communication network factor 6 | 39.293 | UniProtKB |
