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

────────────────────────────────────────────┬───┬───┬───┬───┬───┬───┬────── OR6C1
                                            │   │   │   │   │   │   └────── OR6C75
                                            │   │   │   │   │   └────── OR6C74
                                            │   │   │   │   └───┬───┬────── OR6C6
                                            │   │   │   │       │   └────── OR6C70
                                            │   │   │   │       └───┬────── OR6C65
                                            │   │   │   │           └────── OR6C76
                                            │   │   │   └────── OR6C4
                                            │   │   └────── OR6C3
                                            │   └────── OR6C2
                                            └────── OR6C68