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

────────────────────────────────────────────────────────────┬───┬───┬───┬───┬───┬────── OR2B2
                                                            │   │   │   │   │   └────── OR2B6
                                                            │   │   │   │   └────── OR2B3
                                                            │   │   │   └────── OR2B8
                                                            │   │   └────── OR2B11
                                                            │   └───┬───┬────── OR2G2
                                                            │       │   └────── OR2G6
                                                            │       └────── OR2G3
                                                            └───┬────── OR2W1
                                                                └────── OR2W3