| -0.7834604 | Class A Orphan/other |
| -0.63305175 | GPR |
| -0.673297 | yet even more Class A Orphans |
| -0.9913126 | Mas proto-oncogene |
| -1.1782175 | SREB |
| -1.214391 | Chemokine receptor-like 2 |
| -1.2435868 | GPR37 like (peptide receptor) |
| -1.258649 | ORPH |
| -1.2848006 | GP40 like |
| -1.3128366 | RDC1 |
| -1.3171499 | Adrenomedullin (G10D) |
| -1.4048498 | BONZO |
| -0.9730186 | Gonadotropin-releasing hormone |
| -1.0616035 | Viral |
| -1.0735042 | Hormone protein |
| -1.1609282 | Thyrotropin-releasing hormone & Secretagogue |
| -1.1852695 | Prostanoid |
| -1.2036135 | Melatonin |
| -1.2054057 | Nucleotide-like |
| -1.2380579 | Cannabis |
| -1.2724919 | (Rhod)opsin |
| -1.3382587 | Lysosphingolipid & LPA (EDG) |
| -1.351943 | Platelet activating factor |
| -1.3962117 | Olfactory |
| -1.5232613 | Amine |
| -1.6250855 | Peptide |