A subclass of serotonin receptors that form cation channels and mediate signal transduction by depolarizing the cell membrane. The cation channels are formed from 5 receptor subunits. When stimulated the receptors allow the selective passage of SODIUM; POTASSIUM; and CALCIUM. (mesh:D044406)
| Identifier | Name | Relation |
| HGNC:24005 | HTR3E | isa |
| HGNC:5297 | HTR3A | isa |
| HGNC:5298 | HTR3B | isa |
| HGNC:24003 | HTR3C | isa |
| HGNC:24004 | HTR3D | isa |
| Relation | Identifier | Name |
| isa | FPLX:Ligand_gated_ion_channels | Ligand_gated_ion_channels |
| isa | FPLX:HTR | HTR |