| sIL-1Ra | 17 | 9597123 |
| sIgA | 385 | UniProtKB |
| Sgp130 (Soluble Glycoprotein 130) | 103.537 | UniProtKB |
| sFasL | 26 | 7536672 |
| Serum amyloid A-1 protein | 13.532 | UniProtKB |
| Serotonin | 0.17621 | UniProtKB |
| Serine protease inhibitor Kazal-type 5 | 120.714 | UniProtKB |
| Semaphorin-3A | 88.889 | UniProtKB |
| SCF | 30.899 | UniProtKB |
| sCD40L | 29.274 | UniProtKB |