Table 2.
Statistical information about the structural elements stored in RNA FRABASE 2.0.
| Type of structural element | Number of structural elements in all models of the deposited structures | Number of structural elements in the 1st model of the deposited structures |
|---|---|---|
| Residue | 866720 | 742632 |
| Base pair | 505900 | 443962 |
| Multiplet: | ||
| -triplet | 25669 | 23645 |
| -quadruplet | 3806 | 3523 |
| -quintuplet | 97 | 97 |
| Dinucleotide step | 332564 | 270986 |
| Stem | 50873 | 42297 |
| Loop: | ||
| -hairpin | 21115 | 16650 |
| -internal/bulge | 34204 | 29193 |
| -3-way junction | 4117 | 4077 |
| -4-way junction | 1975 | 1944 |
| -5-way junction | 1196 | 1196 |
| -6-way junction | 175 | 175 |
| -7-way junction | 214 | 214 |
| -8-way junction | 23 | 23 |
| -9-way junction | 3 | 3 |
| -10-way junction | 9 | 9 |
| -11-way junction | 23 | 23 |
| -12-way junction | 5 | 5 |
| -14-way junction | 1 | 1 |