| -0.9038966 | Viral |
| -0.95701224 | Gonadotropin-releasing hormone |
| -1.0385602 | Nucleotide-like |
| -1.0776576 | Hormone protein |
| -1.1599689 | Thyrotropin-releasing hormone & Secretagogue |
| -1.2349306 | Prostanoid |
| -1.2622437 | Melatonin |
| -1.2769439 | Cannabis |
| -1.326152 | Peptide |
| -1.3422755 | Olfactory |
| -1.3603361 | Platelet activating factor |
| -1.3954105 | Lysosphingolipid & LPA (EDG) |
| -1.4319173 | (Rhod)opsin |
| -1.7308669 | Amine |
| -1.8945466 | Class A Orphan/other |
| -0.94476426 | GPR |
| -1.0029082 | Mas proto-oncogene |
| -1.1960129 | SREB |
| -1.2190546 | Chemokine receptor-like 2 |
| -1.2441517 | GPR37 like (peptide receptor) |
| -1.2707222 | ORPH |
| -1.2925987 | GP40 like |
| -1.3236278 | Adrenomedullin (G10D) |
| -1.3279742 | RDC1 |
| -1.409019 | BONZO |
| -1.4758171 | yet even more Class A Orphans |