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

────────────────────────────────────────────────────────────────────┬───┬───┬───┬───┬────── OR2M3
                                                                    │   │   │   │   └────── OR2M5
                                                                    │   │   │   └────── OR2M7
                                                                    │   │   └────── OR2M2
                                                                    │   └────── OR2M4
                                                                    └───┬───┬───┬───┬───┬───┬───┬───┬────── OR2T1
                                                                        │   │   │   │   │   │   │   └────── OR2T4
                                                                        │   │   │   │   │   │   └───┬────── OR2T5
                                                                        │   │   │   │   │   │       └────── OR2T29
                                                                        │   │   │   │   │   └───┬───┬────── OR2T2
                                                                        │   │   │   │   │       │   └────── OR2T35
                                                                        │   │   │   │   │       └───┬───┬────── OR2T6
                                                                        │   │   │   │   │           │   └────── OR2T27
                                                                        │   │   │   │   │           └────── OR2T10
                                                                        │   │   │   │   └───┬────── OR2T3
                                                                        │   │   │   │       └────── OR2T34
                                                                        │   │   │   └────── OR2T11
                                                                        │   │   └────── OR2T8
                                                                        │   └────── OR2T33
                                                                        └────── OR2T12