| Protein IL-40 | 29.091 | UniProtKB |
| Prostate-specific antigen | 28.741 | UniProtKB |
| Prostaglandin G/H synthase 2 | 68.996 | UniProtKB |
| Prostaglandin F2α (PGF2α) | 0.354 | Found via general search |
| Prostaglandin F2b (PGF2b) | 0.355 | Found via general search |
| Prostaglandin D2 (PGD2) | 0.35 | Found via general search |
| Properdin(Factor P) | 53 | Found via general search |
| proMMP9/NGAL complex | 125 | Found via general search |
| Prolactin (PRL) | 23 | Found via general search |
| Progranulin | 63.544 | UniProtKB |
