Receptors

Major nodes: Class I | OR1/3/7 | OR2/13 | OR4 | OR5/8/9 | OR6/10/11 | OR10D/G/S | OR12 | OR14-like | Olfactory TAARs

────────────────────────────────────────────────────────────────────────────┬───┬───┬───┬────── OR7A17
                                                                            │   │   │   └───┬────── OR7A10
                                                                            │   │   │       └────── OR7A2
                                                                            │   │   └────── OR7A5
                                                                            │   └───┬────── OR7C2
                                                                            │       └────── OR7C1
                                                                            └───┬────── OR7D4
                                                                                └────── OR7D2