| -0.7767276 | Class A Orphan/other |
| -0.88042337 | yet even more Class A Orphans |
| -0.99888706 | Mas proto-oncogene |
| -1.1698574 | SREB |
| -1.1713964 | Chemokine receptor-like 2 |
| -1.2064084 | GPR37 like (peptide receptor) |
| -1.2208312 | GP40 like |
| -1.2430811 | RDC1 |
| -1.2462193 | ORPH |
| -1.276547 | Adrenomedullin (G10D) |
| -1.3838823 | BONZO |
| -1.3872029 | GPR |
| -1.0003641 | Gonadotropin-releasing hormone |
| -1.0904601 | Hormone protein |
| -1.1240735 | Viral |
| -1.163998 | Thyrotropin-releasing hormone & Secretagogue |
| -1.1734023 | Melatonin |
| -1.225275 | (Rhod)opsin |
| -1.2263378 | Cannabis |
| -1.2339132 | Prostanoid |
| -1.2425327 | Nucleotide-like |
| -1.3151214 | Platelet activating factor |
| -1.3354249 | Olfactory |
| -1.3379414 | Lysosphingolipid & LPA (EDG) |
| -1.3587506 | Amine |
| -1.8007315 | Peptide |