| -0.3055572 | Class A Orphan/other |
| -0.73493636 | yet even more Class A Orphans |
| -0.95271057 | Mas proto-oncogene |
| -1.079346 | Chemokine receptor-like 2 |
| -1.1162696 | RDC1 |
| -1.1326512 | SREB |
| -1.1353996 | GP40 like |
| -1.1816813 | GPR37 like (peptide receptor) |
| -1.2009673 | Adrenomedullin (G10D) |
| -1.2087538 | ORPH |
| -1.3233536 | BONZO |
| -1.390514 | GPR |
| -0.8499897 | Peptide |
| -1.0035789 | Gonadotropin-releasing hormone |
| -1.1037914 | Hormone protein |
| -1.1195658 | Thyrotropin-releasing hormone & Secretagogue |
| -1.1405265 | Nucleotide-like |
| -1.153205 | Melatonin |
| -1.1677154 | Prostanoid |
| -1.1736794 | Viral |
| -1.1853371 | Platelet activating factor |
| -1.228794 | Cannabis |
| -1.2682596 | Olfactory |
| -1.316079 | Lysosphingolipid & LPA (EDG) |
| -1.3865554 | (Rhod)opsin |
| -1.593855 | Amine |