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

────────────────────────────────────────────────┬───┬───┬───┬────── OR5K1
                                                │   │   │   └────── OR5K2
                                                │   │   └────── OR5K3
                                                │   └────── OR5K4
                                                └───┬───┬───┬───┬───┬────── OR5H1
                                                    │   │   │   │   └────── OR5H15
                                                    │   │   │   └────── OR5H14
                                                    │   │   └────── OR5H6
                                                    │   └────── OR5H2
                                                    └────── OR5AC2