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

────────────────────────────────┬───┬───┬───┬───┬───┬────── OR7G1
                                │   │   │   │   │   └────── OR7G2
                                │   │   │   │   └────── OR7G3
                                │   │   │   └────── OR7E24
                                │   │   └───┬───┬───┬────── OR7A10
                                │   │       │   │   └────── OR7A17
                                │   │       │   └────── OR7A2
                                │   │       └────── OR7A5
                                │   └───┬────── OR7C1
                                │       └────── OR7C2
                                └───┬────── OR7D2
                                    └────── OR7D4