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

────────────────────────────────────────────────────────┬───┬───┬───┬───┬───┬───┬───┬───┬────── OR5D14
                                                        │   │   │   │   │   │   │   │   └────── OR5D16
                                                        │   │   │   │   │   │   │   └────── OR5D18
                                                        │   │   │   │   │   │   └────── OR5D13
                                                        │   │   │   │   │   └───┬────── OR5L1
                                                        │   │   │   │   │       └────── OR5L2
                                                        │   │   │   │   └────── OR5I1
                                                        │   │   │   └───┬────── OR5G3
                                                        │   │   │       └────── OR5J2
                                                        │   │   └───┬───┬───┬───┬───┬────── OR5M1
                                                        │   │       │   │   │   │   └────── OR5M10
                                                        │   │       │   │   │   └────── OR5M11
                                                        │   │       │   │   └────── OR5M8
                                                        │   │       │   └────── OR5M3
                                                        │   │       └────── OR5M9
                                                        │   └───┬───┬───┬────── OR5A1
                                                        │       │   │   └────── OR5A2
                                                        │       │   └────── OR5AN1
                                                        │       └───┬────── OR5F1
                                                        │           └────── OR5AU1
                                                        └───┬───┬───┬───┬───┬───┬────── OR5B3
                                                            │   │   │   │   │   └────── OR5B17
                                                            │   │   │   │   └────── OR5B2
                                                            │   │   │   └────── OR5B12
                                                            │   │   └────── OR5B21
                                                            │   └────── OR5AP2
                                                            └───┬───┬────── OR5C1
                                                                │   └────── OR5W2
                                                                └────── OR5AR1