Receptors

Major nodes: ClassI | OR1/3/7 | OR2/13 | OR2M/T/V | OR4/12 | OR5/8/9 | OR5A/AN | OR6/10/11 | OR10D/G/S | OR14 | OR51/52 | Schiff6

────────────────────────────────────────────────────┬────── OR1I1
                                                    └───┬───┬───┬───┬────── OR1E1
                                                        │   │   │   └────── OR1E2
                                                        │   │   └────── OR1E3
                                                        │   └───┬───┬────── OR1J1
                                                        │       │   └────── OR1J4
                                                        │       └────── OR1J2
                                                        └───┬───┬────── OR1F1
                                                            │   └────── OR1F2
                                                            └────── OR1F12