| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 3EPK_E | 14 | 3EPK | tRNA | 69 | RF00005 |
| 3EPK_F | 14 | 3EPK | tRNA | 69 | RF00005 |
| 3EPL_E | 14 | 3EPL | tRNA | 69 | RF00005 |
| 3EPL_F | 14 | 3EPL | tRNA | 69 | RF00005 |
| 3EQT_C | 1 | 3EQT | 5'-R(*GP*CP*GP*CP*GP*CP*GP*C)-3' | 8 | - |
| 3EQT_D | 1 | 3EQT | 5'-R(*GP*CP*GP*CP*GP*CP*GP*C)-3' | 8 | - |
| 3EX7_F | 184 | 3EX7 | RNA (5'-R(*UP*UP*UP*UP*UP*U)-3') | 6 | - |
| 3EX7_J | 184 | 3EX7 | RNA (5'-R(*UP*UP*UP*UP*UP*U)-3') | 6 | - |
| 3F2Q_X | 296 | 3F2Q | FMN riboswitch | 112 | RF00050 |
| 3F2T_X | 296 | 3F2T | FMN riboswitch | 112 | RF00050 |
| 3F2W_X | 296 | 3F2W | FMN riboswitch | 112 | RF00050 |
| 3F2X_X | 296 | 3F2X | FMN riboswitch | 112 | RF00050 |
| 3F2Y_X | 296 | 3F2Y | FMN riboswitch | 112 | RF00050 |
| 3F30_X | 296 | 3F30 | FMN riboswitch | 112 | RF00050 |
| 3F4E_X | 296 | 3F4E | FMN riboswitch | 54 | - |
| 3F4E_Y | 296 | 3F4E | FMN riboswitch | 56 | - |
| 3F4G_X | 296 | 3F4G | FMN riboswitch | 54 | - |
| 3F4G_Y | 296 | 3F4G | FMN riboswitch | 56 | - |
| 3F4H_X | 296 | 3F4H | FMN riboswitch | 54 | - |
| 3F4H_Y | 296 | 3F4H | FMN riboswitch | 56 | - |
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