| -0.64617056 | Class A Orphan/other |
| -0.3975029 | yet even more Class A Orphans |
| -0.9776094 | Mas proto-oncogene |
| -1.1269349 | GP40 like |
| -1.1282206 | SREB |
| -1.1914641 | Chemokine receptor-like 2 |
| -1.2133005 | GPR37 like (peptide receptor) |
| -1.2280402 | RDC1 |
| -1.2461761 | ORPH |
| -1.2531148 | Adrenomedullin (G10D) |
| -1.372242 | BONZO |
| -1.4960792 | GPR |
| -0.7696947 | Peptide |
| -1.0030035 | Gonadotropin-releasing hormone |
| -1.0307924 | Prostanoid |
| -1.1058365 | Hormone protein |
| -1.1397109 | Nucleotide-like |
| -1.1399949 | Thyrotropin-releasing hormone & Secretagogue |
| -1.1620384 | Viral |
| -1.1627108 | Melatonin |
| -1.266836 | Cannabis |
| -1.2756666 | Platelet activating factor |
| -1.3845278 | Olfactory |
| -1.3885448 | (Rhod)opsin |
| -1.389314 | Lysosphingolipid & LPA (EDG) |
| -1.6145437 | Amine |