| -0.32101852 | Class A Orphan/other |
| -0.3970069 | yet even more Class A Orphans |
| -0.978732 | Mas proto-oncogene |
| -1.1588376 | SREB |
| -1.1928576 | Chemokine receptor-like 2 |
| -1.2379026 | GPR37 like (peptide receptor) |
| -1.2635845 | ORPH |
| -1.2725859 | GPR |
| -1.2761443 | GP40 like |
| -1.2865281 | RDC1 |
| -1.3180653 | Adrenomedullin (G10D) |
| -1.3828812 | BONZO |
| -0.96042776 | Gonadotropin-releasing hormone |
| -1.0234861 | Viral |
| -1.0812161 | Hormone protein |
| -1.1200658 | Nucleotide-like |
| -1.1679251 | Thyrotropin-releasing hormone & Secretagogue |
| -1.1880182 | Prostanoid |
| -1.2196276 | Melatonin |
| -1.2525619 | Cannabis |
| -1.3559154 | Olfactory |
| -1.3574438 | Platelet activating factor |
| -1.3703835 | (Rhod)opsin |
| -1.3830948 | Lysosphingolipid & LPA (EDG) |
| -1.5198259 | Peptide |
| -1.6576772 | Amine |