| -0.55572534 | Class A Orphan/other |
| -0.35363993 | yet even more Class A Orphans |
| -0.9892268 | Mas proto-oncogene |
| -1.1544052 | GPR |
| -1.197582 | SREB |
| -1.2193274 | Chemokine receptor-like 2 |
| -1.2424822 | GPR37 like (peptide receptor) |
| -1.2676982 | ORPH |
| -1.2938213 | GP40 like |
| -1.3242773 | Adrenomedullin (G10D) |
| -1.3265053 | RDC1 |
| -1.4052204 | BONZO |
| -0.9536467 | Gonadotropin-releasing hormone |
| -1.040121 | Peptide |
| -1.0603387 | Nucleotide-like |
| -1.085781 | Hormone protein |
| -1.0929418 | Viral |
| -1.1715021 | Thyrotropin-releasing hormone & Secretagogue |
| -1.2159363 | Melatonin |
| -1.2476716 | Prostanoid |
| -1.2675806 | Cannabis |
| -1.3313928 | Olfactory |
| -1.3563643 | Platelet activating factor |
| -1.3935561 | Lysosphingolipid & LPA (EDG) |
| -1.4235816 | (Rhod)opsin |
| -1.7341137 | Amine |