| -0.42165974 | Class A Orphan/other |
| -0.82429546 | yet even more Class A Orphans |
| -1.0022554 | Mas proto-oncogene |
| -1.1377914 | SREB |
| -1.1818647 | Chemokine receptor-like 2 |
| -1.2389812 | GPR37 like (peptide receptor) |
| -1.2418665 | GP40 like |
| -1.2478281 | RDC1 |
| -1.2514267 | ORPH |
| -1.2809688 | Adrenomedullin (G10D) |
| -1.3033642 | GPR |
| -1.3725473 | BONZO |
| -0.9949918 | Gonadotropin-releasing hormone |
| -1.0005467 | Viral |
| -1.0850816 | Hormone protein |
| -1.1340121 | Nucleotide-like |
| -1.1663839 | Thyrotropin-releasing hormone & Secretagogue |
| -1.2034695 | Melatonin |
| -1.2325344 | Prostanoid |
| -1.2681099 | Cannabis |
| -1.3437241 | Platelet activating factor |
| -1.3815825 | Lysosphingolipid & LPA (EDG) |
| -1.3875197 | Peptide |
| -1.4229486 | Olfactory |
| -1.517864 | (Rhod)opsin |
| -1.5222086 | Amine |