| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Receptors, Neurotransmitter | 100 | + | |
| 2 | Receptors, G-Protein-Coupled | 91 | + | |
| 3 | Receptors, Peptide | 51 | + | |
| 4 | Receptors, Immunologic | 45 | + | |
| 5 | Receptors, Biogenic Amine | 26 | + | |
| 6 | Cysteine Loop Ligand-Gated Ion Channel Receptors | 7 | + | |
| 7 | Receptors, Purinergic | 5 | + | |
| 8 | Receptor Protein-Tyrosine Kinases | 4 | + | |
| 9 | Receptors, Virus | 3 | + | |
| 10 | Receptors, Adipokine | 1 | + | |
| 11 | Receptors, Lipoprotein | 1 | + |