| 1.299221 | Peptide |
| 1.3052962 | Opioid |
| 1.0180528 | Opioid type M |
| -0.6815944 | Opioid type K |
| -0.948214 | Opioid type D |
| -0.97486293 | Opioid type X |
| -0.86182326 | Somatostatin |
| -0.89671224 | Galanin |
| -0.9743905 | Chemokine/chemotactic factors like |
| -1.0043156 | Neurotensin |
| -1.0074263 | Tachykinin |
| -1.010453 | Fmet-leu-phe |
| -1.0130994 | CCK |
| -1.0182662 | Urotensin II |
| -1.0385588 | Angiotensin |
| -1.0492545 | Proteinase activated |
| -1.060013 | Endothelin |
| -1.0783308 | Melanocortin |
| -1.1288239 | Neuropeptide Y |
| -1.1334354 | Orexin |
| -1.1427659 | APJ like |
| -1.1502423 | Bombesin |
| -1.168072 | Chemokine |
| -1.1947738 | Vasopressin-like |
| -1.1992497 | Bradykinin |
| -1.2320845 | C5a anaphylatoxin |
| -1.2451034 | Interleukin-8 |
| -1.2520872 | Thrombin |
| -0.8902017 | Thyrotropin-releasing hormone & Secretagogue |
| -0.9030922 | Nucleotide-like |
| -0.94373417 | Melatonin |
| -0.9849203 | Gonadotropin-releasing hormone |
| -1.0243278 | Amine |
| -1.0403248 | Class A Orphan/other |
| -1.0800266 | Viral |
| -1.0954291 | Prostanoid |
| -1.1180525 | (Rhod)opsin |
| -1.1229793 | Hormone protein |
| -1.1675587 | Cannabis |
| -1.186244 | Platelet activating factor |
| -1.24855 | Lysosphingolipid & LPA (EDG) |
| -1.2548956 | Olfactory |