| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Receptors, Neurotransmitter | 100 | + | |
| 2 | Receptors, G-Protein-Coupled | 76 | + | |
| 3 | Receptors, Peptide | 58 | + | |
| 4 | Receptors, Immunologic | 32 | + | |
| 5 | Receptors, Purinergic | 16 | + | |
| 6 | Receptor Protein-Tyrosine Kinases | 13 | + | |
| 7 | Receptors, Biogenic Amine | 13 | + | |
| 8 | Cysteine Loop Ligand-Gated Ion Channel Receptors | 8 | + | |
| 9 | Receptors, Eicosanoid | 2 | + | |
| 10 | Receptors, Virus | 1 | + |