Table 5.
Populations and overlap of the unique dimers constituted from dominant base pairs within intact RNA helical domains.†
| C·G_WC | G·C_WC | U·A_WC | A·U_WC | U·G_w | G·U_w | A·G_s | G·A_s | U·A_H | A·U_H | U·U_w | A·G_WC | G·A_WC | bpi/bpi+1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6044.5 | 13354.1 | 7473.0 | 5742.9 | 775.0 | 1925.3 | 666.9 | -- | -- | -- | 182.9 | 44.8 | 54.2 | G·C_WC |
| 60811.3 | 5114.1 | 5729.9 | 1612.9 | 25213.5 | 3310.0 | -- | -- | -- | 696.1 | 208.8 | 57.7 | C·G_WC | |
| 972.0 | 2493.3 | 202.8 | 456.1 | 77.7 | -- | -- | -- | 23.6 | -- | 34.3 | A·U_WC | ||
| 1268.4 | 482.0 | 7911.8 | 69.5 | -- | -- | -- | 208.2 | 16.4 | 145.3 | U·A_WC | |||
| 315.3 | 424.1 | 328.3 | 15.7 | -- | -- | 52.9 | -- | -- | G·U_w | ||||
| 1114.4 | -- | -- | -- | -- | -- | 48.8 | 79.3 | U·G_w | |||||
| -- | 1310.6 | -- | -- | 611.1 | -- | -- | G·A_s | ||||||
| 209.1 | 73.0 | 23.7 | -- | -- | -- | A·G_s | |||||||
| -- | -- | -- | -- | -- | A·U_H | ||||||||
| -- | -- | -- | -- | U·A_H | |||||||||
| 31.7 | -- | -- | U·U_w | ||||||||||
| -- | 16.3 | G·A_WC | |||||||||||
| -- | A·G_WC |
†
Dimers limited to the 6755 intact, chemically linked base-pair steps in the interior of RNA helical fragments. Overlap measured by the area, in Å2, shared by the rings of stacked bases [15].