| -0.9554902 | Gonadotropin-releasing hormone |
| -1.0173968 | Nucleotide-like |
| -1.065488 | Viral |
| -1.0727067 | Hormone protein |
| -1.1506684 | Thyrotropin-releasing hormone & Secretagogue |
| -1.1732485 | Class A Orphan/other |
| -1.0064481 | Mas proto-oncogene |
| -1.1963344 | SREB |
| -1.2165192 | Chemokine receptor-like 2 |
| -1.2367127 | GPR37 like (peptide receptor) |
| -1.2633711 | ORPH |
| -1.2814146 | GP40 like |
| -1.2883819 | yet even more Class A Orphans |
| -1.3038049 | GPR |
| -1.3201457 | Adrenomedullin (G10D) |
| -1.3262821 | RDC1 |
| -1.4042628 | BONZO |
| -1.2275306 | Prostanoid |
| -1.2563885 | Melatonin |
| -1.2775716 | Cannabis |
| -1.337902 | Olfactory |
| -1.3590062 | Platelet activating factor |
| -1.3922313 | Lysosphingolipid & LPA (EDG) |
| -1.3986113 | (Rhod)opsin |
| -1.6656572 | Peptide |
| -1.747125 | Amine |