| -0.2915846 | Class A Orphan/other |
| -0.3239003 | yet even more Class A Orphans |
| -1.0067456 | Mas proto-oncogene |
| -1.0185299 | GPR |
| -1.1946157 | SREB |
| -1.2170757 | Chemokine receptor-like 2 |
| -1.2283217 | GPR37 like (peptide receptor) |
| -1.2501152 | ORPH |
| -1.2947505 | GP40 like |
| -1.3067827 | Adrenomedullin (G10D) |
| -1.3163723 | RDC1 |
| -1.4029351 | BONZO |
| -0.8430886 | Peptide |
| -0.93976545 | Viral |
| -0.9692276 | Gonadotropin-releasing hormone |
| -0.98725486 | Nucleotide-like |
| -1.0709988 | Hormone protein |
| -1.1203206 | Olfactory |
| -1.1484698 | Thyrotropin-releasing hormone & Secretagogue |
| -1.2212425 | Melatonin |
| -1.2430756 | Prostanoid |
| -1.2516367 | Cannabis |
| -1.3510582 | Platelet activating factor |
| -1.3539356 | Lysosphingolipid & LPA (EDG) |
| -1.4065044 | (Rhod)opsin |
| -1.5570658 | Amine |