Table 2. Size distribution of human OR subfamilies.
| Number ORs | Number subfamilies* |
|---|---|
| 1 | 94 |
| 2 | 40 |
| 3 | 18 |
| 4 | 8 |
| 5 | 4 |
| 6 | 3 |
| 7 | 0 |
| 8 | 4 |
| 9 | 1 |
*
Number of subfamilies that contain number of ORs on left
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