| -0.96715385 | Viral |
| -0.9961941 | Gonadotropin-releasing hormone |
| -1.0744432 | Hormone protein |
| -1.1554279 | Thyrotropin-releasing hormone & Secretagogue |
| -1.1988147 | Nucleotide-like |
| -1.2105381 | Melatonin |
| -1.214283 | Prostanoid |
| -1.2766132 | Cannabis |
| -1.329344 | Platelet activating factor |
| -1.3635778 | (Rhod)opsin |
| -1.3942559 | Lysosphingolipid & LPA (EDG) |
| -1.4241979 | Olfactory |
| -1.4561725 | Class A Orphan/other |
| -1.0077055 | Mas proto-oncogene |
| -1.1786239 | SREB |
| -1.216339 | Chemokine receptor-like 2 |
| -1.2298297 | GP40 like |
| -1.2356222 | GPR37 like (peptide receptor) |
| -1.260093 | yet even more Class A Orphans |
| -1.2681891 | ORPH |
| -1.2962713 | RDC1 |
| -1.3042368 | Adrenomedullin (G10D) |
| -1.3961842 | BONZO |
| -1.4166286 | GPR |
| -1.4888482 | Peptide |
| -1.5110866 | Amine |