| -0.40583554 | Peptide |
| -0.9101253 | Amine |
| -0.95148873 | Gonadotropin-releasing hormone |
| -0.9728402 | Olfactory |
| -1.0064803 | Class A Orphan/other |
| -0.85189986 | yet even more Class A Orphans |
| -0.87224805 | GPR |
| -0.99882656 | Mas proto-oncogene |
| -1.1867051 | SREB |
| -1.2093565 | Chemokine receptor-like 2 |
| -1.2407978 | GPR37 like (peptide receptor) |
| -1.2578249 | ORPH |
| -1.263407 | GP40 like |
| -1.3138728 | Adrenomedullin (G10D) |
| -1.3199229 | RDC1 |
| -1.405796 | BONZO |
| -1.0631044 | Viral |
| -1.0722934 | Hormone protein |
| -1.1692718 | Thyrotropin-releasing hormone & Secretagogue |
| -1.1826547 | Prostanoid |
| -1.187508 | Nucleotide-like |
| -1.250222 | Cannabis |
| -1.2518445 | Melatonin |
| -1.3271815 | (Rhod)opsin |
| -1.334952 | Platelet activating factor |
| -1.3911822 | Lysosphingolipid & LPA (EDG) |