| -0.9144812 | Viral |
| -0.9770519 | Class A Orphan/other |
| -0.99950004 | Mas proto-oncogene |
| -1.0586627 | yet even more Class A Orphans |
| -1.1577972 | SREB |
| -1.193737 | Chemokine receptor-like 2 |
| -1.2331853 | GPR37 like (peptide receptor) |
| -1.2557495 | GP40 like |
| -1.2639586 | ORPH |
| -1.2956821 | RDC1 |
| -1.2986375 | Adrenomedullin (G10D) |
| -1.397285 | BONZO |
| -1.4275635 | GPR |
| -1.007825 | Gonadotropin-releasing hormone |
| -1.0725687 | Hormone protein |
| -1.1856798 | Thyrotropin-releasing hormone & Secretagogue |
| -1.2049333 | Melatonin |
| -1.2156796 | Prostanoid |
| -1.2539108 | (Rhod)opsin |
| -1.2624513 | Cannabis |
| -1.2788656 | Nucleotide-like |
| -1.3417921 | Platelet activating factor |
| -1.3712071 | Peptide |
| -1.3796475 | Lysosphingolipid & LPA (EDG) |
| -1.444324 | Amine |
| -1.4685246 | Olfactory |