| -0.22962895 | Class A Orphan/other |
| -0.99817145 | Mas proto-oncogene |
| -1.0540329 | yet even more Class A Orphans |
| -1.1396264 | SREB |
| -1.1556057 | Chemokine receptor-like 2 |
| -1.1627429 | GPR37 like (peptide receptor) |
| -1.2165157 | ORPH |
| -1.2314571 | GP40 like |
| -1.2601887 | RDC1 |
| -1.290976 | Adrenomedullin (G10D) |
| -1.346124 | BONZO |
| -1.5925686 | GPR |
| -0.28664756 | Peptide |
| -0.9472141 | Viral |
| -1.01015 | Gonadotropin-releasing hormone |
| -1.0500208 | Melatonin |
| -1.1112309 | Hormone protein |
| -1.1527797 | Thyrotropin-releasing hormone & Secretagogue |
| -1.1877857 | Cannabis |
| -1.2391701 | Prostanoid |
| -1.2442099 | Nucleotide-like |
| -1.2532809 | Lysosphingolipid & LPA (EDG) |
| -1.3084712 | Olfactory |
| -1.3222495 | Platelet activating factor |
| -1.3450152 | (Rhod)opsin |
| -1.4577796 | Amine |