| 1.3248245 | Peptide |
| 1.1375506 | Opioid |
| 0.9999754 | Opioid type D |
| -0.7224412 | Opioid type K |
| -0.73518187 | Opioid type M |
| -1.011578 | Opioid type X |
| -0.8317037 | Somatostatin |
| -0.93475926 | Chemokine/chemotactic factors like |
| -0.9453123 | Galanin |
| -0.98136395 | Neurotensin |
| -1.0092286 | Urotensin II |
| -1.0236659 | Tachykinin |
| -1.031831 | Fmet-leu-phe |
| -1.0361806 | CCK |
| -1.0367558 | Melanocortin |
| -1.047991 | Angiotensin |
| -1.0557792 | Proteinase activated |
| -1.0670537 | Chemokine |
| -1.0894867 | Neuropeptide Y |
| -1.09018 | Endothelin |
| -1.1280522 | Bombesin |
| -1.1411188 | Orexin |
| -1.1666754 | APJ like |
| -1.1759062 | Bradykinin |
| -1.1943295 | Vasopressin-like |
| -1.249735 | Thrombin |
| -1.2682552 | Interleukin-8 |
| -1.2947769 | C5a anaphylatoxin |
| -0.8522868 | Thyrotropin-releasing hormone & Secretagogue |
| -0.978246 | Nucleotide-like |
| -0.98104787 | Viral |
| -0.984293 | Gonadotropin-releasing hormone |
| -1.0180858 | Melatonin |
| -1.1045158 | Prostanoid |
| -1.1173127 | Hormone protein |
| -1.1585553 | Class A Orphan/other |
| -1.1744944 | Amine |
| -1.1857352 | Cannabis |
| -1.2100582 | Platelet activating factor |
| -1.214052 | (Rhod)opsin |
| -1.2241995 | Lysosphingolipid & LPA (EDG) |
| -1.2870693 | Olfactory |