| 1.2367152 | Peptide |
| 0.96119237 | Opioid |
| 0.96323746 | Opioid type D |
| -0.62101966 | Opioid type X |
| -0.6750041 | Opioid type M |
| -1.0361751 | Opioid type K |
| -0.8993931 | Galanin |
| -0.9359944 | Tachykinin |
| -0.96899307 | Angiotensin |
| -0.9932461 | Somatostatin |
| -0.9944687 | Neuromedin U |
| -1.0103059 | Chemokine |
| -1.0207717 | Fmet-leu-phe |
| -1.028703 | Endothelin |
| -1.0438039 | C5a anaphylatoxin |
| -1.0553946 | Thrombin |
| -1.0583285 | Urotensin II |
| -1.0605444 | Melanocortin |
| -1.0671294 | CCK |
| -1.1040927 | Bombesin |
| -1.1457225 | Chemokine receptor-like |
| -1.145995 | Interleukin-8 |
| -1.162396 | GPR37 / endothelin B-like |
| -1.1662122 | APJ like |
| -1.1974149 | Bradykinin |
| -1.2075804 | Adrenomedullin (G10D) |
| -1.2105851 | Vasopressin-like |
| -1.2230165 | Neurotensin |
| -1.2280157 | Neuropeptide Y |
| -1.2355683 | Orexin & neuropeptide FF |
| -1.2669504 | Proteinase activated |
| -0.8602848 | Thyrotropin-releasing hormone & Secretagogue |
| -0.9640095 | Gonadotropin-releasing hormone |
| -0.9707613 | Nucleotide-like |
| -0.9993485 | Viral |
| -0.9995642 | Class A Orphan/other |
| -1.00764 | Hormone protein |
| -1.0629568 | Melatonin |
| -1.0836169 | Prostanoid |
| -1.0947866 | Cannabis |
| -1.11652 | Amine |
| -1.1222574 | Platelet activating factor |
| -1.12625 | Olfactory |
| -1.1795192 | (Rhod)opsin |
| -1.2847052 | Lysosphingolipid & LPA (EDG) |