| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 1OLN_C | 24 | 1OLN | RNA | 58 | RF02541 |
| 1OND_0 | 53 | 1OND | 23S RIBOSOMAL RNA | 2880 | RF02541 |
| 1OO7_A | 1 | 1OO7 | 5'-R(*GP*AP*AP*GP*AP*GP*AP*AP*GP*C)-3' | 10 | - |
| 1OOA_C | 116 | 1OOA | RNA aptamer | 29 | - |
| 1OOA_D | 116 | 1OOA | RNA aptamer | 29 | - |
| 1OQ0_A | 46 | 1OQ0 | P6.1 RNA hairpin from hTR | 15 | - |
| 1OSU_A | 1 | 1OSU | RNA (5'-R(*UP*UP*CP*GP*CP*G)-3') | 6 | - |
| 1OSW_A | 16 | 1OSW | 5'-R(*GP*GP*AP*GP*GP*CP*GP*CP*UP*AP*CP*GP*GP*CP*GP*AP*GP*GP*CP*UP*CP*CP*A)-3' | 23 | - |
| 1OW9_A | 113 | 1OW9 | A mimic of the VS Ribozyme Hairpin Substrate | 23 | - |
| 1P5M_A | 117 | 1P5M | 55-MER | 55 | - |
| 1P5N_A | 44 | 1P5N | 34-MER | 34 | - |
| 1P5O_A | 117 | 1P5O | 77-MER | 77 | - |
| 1P5P_A | 117 | 1P5P | 77-MER | 77 | - |
| 1P6V_B | 65 | 1P6V | 45-MER | 68 | RF00023 |
| 1P6V_D | 65 | 1P6V | 45-MER | 68 | RF00023 |
| 1P9X_0 | 53 | 1P9X | 23S RIBOSOMAL RNA | 2880 | RF02541 |
| 1PBM_A | 1 | 1PBM | RNA (5'-R(*CP*GP*CP*GP*CP*G)-3') | 6 | - |
| 1PBM_B | 1 | 1PBM | RNA (5'-R(*CP*GP*CP*GP*CP*G)-3') | 6 | - |
| 1PBR_A | 2 | 1PBR | 16S RIBOSOMAL RNA | 27 | - |
| 1PGL_3 | 1 | 1PGL | 5'-R(*AP*GP*UP*CP*UP*C)-3' | 6 | - |
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