| Lonepair Type | Hairpin Loop (H) | Multi-Stem Loop (M) | Internal Loop (I) | Total |
|---|---|---|---|---|
| Total | 7 | 14 | 3 | 24 |
| U:A ** | 7 (rH) | 3 (2 rH, 1 WC) | 0 | 10 |
| C:G | 0 | 3 (2 WC, 1 rWC) | 0 | 3 |
| C:A | 0 | 2 (1 rH, 1 rWb) | 0 | 2 |
| G:A | 0 | 2 (1 S, 1 H) | 0 | 2 |
| G:C | 0 | 1 (WC) | 1 (NC) | 2 |
| G:G | 0 | 1 (rH) | 2 (H) | 3 |
| U:G | 0 | 1 (rWb) | 0 | 1 |
| U:U | 0 | 1 (rWb) | 0 | 1 |
* The lonepair conformations: WC (Watson-Crick), rWC (reversed Watson-Crick), rWb (reversed Wobble), H (Hoogsteen), rH (reversed Hoogsteen), S (sheared), and NC (other non-canonical) (see Fig. 5). Base-pair distributions are from the rRNA10,12 and tRNA38 crystal structures.
** The lonepair T:A in the T loop of tRNAs is included here.
