| 1.1296972 | Peptide |
| 0.86031514 | Opioid |
| 1.0006664 | Opioid type X |
| -1.0103626 | Opioid type M |
| -1.2083615 | Opioid type K |
| -1.2514162 | Opioid type D |
| -0.92726845 | Galanin |
| -0.9679292 | Chemokine |
| -1.0041766 | Tachykinin |
| -1.0103285 | Neuromedin U |
| -1.0281699 | Endothelin |
| -1.0403824 | Somatostatin |
| -1.0606883 | Thrombin |
| -1.0613241 | Angiotensin |
| -1.0709577 | Fmet-leu-phe |
| -1.0727257 | C5a anaphylatoxin |
| -1.0736908 | CCK |
| -1.0883653 | Bombesin |
| -1.0917382 | Urotensin II |
| -1.1111138 | Melanocortin |
| -1.1476619 | Neuropeptide Y |
| -1.1492795 | APJ like |
| -1.1554074 | GPR37 / endothelin B-like |
| -1.1572315 | Interleukin-8 |
| -1.1838621 | Adrenomedullin (G10D) |
| -1.1854334 | Chemokine receptor-like |
| -1.2056528 | Bradykinin |
| -1.20626 | Vasopressin-like |
| -1.22051 | Orexin & neuropeptide FF |
| -1.2457405 | Neurotensin |
| -1.2619889 | Proteinase activated |
| -0.9118788 | Thyrotropin-releasing hormone & Secretagogue |
| -0.97612697 | Nucleotide-like |
| -0.9870318 | Gonadotropin-releasing hormone |
| -0.9946029 | Class A Orphan/other |
| -1.033536 | Melatonin |
| -1.0346361 | Prostanoid |
| -1.0706726 | Hormone protein |
| -1.0793235 | Olfactory |
| -1.0889174 | Cannabis |
| -1.1511078 | Platelet activating factor |
| -1.1622427 | Viral |
| -1.2363477 | (Rhod)opsin |
| -1.2882835 | Lysosphingolipid & LPA (EDG) |
| -1.9005353 | Amine |