| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 1KOG_M | 88 | 1KOG | Threonyl-tRNA synthetase mRNA | 37 | - |
| 1KOG_N | 88 | 1KOG | Threonyl-tRNA synthetase mRNA | 37 | - |
| 1KOG_O | 88 | 1KOG | Threonyl-tRNA synthetase mRNA | 37 | - |
| 1KOG_P | 88 | 1KOG | Threonyl-tRNA synthetase mRNA | 37 | - |
| 1KOS_A | 89 | 1KOS | 5'-R(*CP*UP*GP*UP*GP*(5MU)P*UP*CP*GP*AP*UP*(CH)P*CP*AP*CP*AP*G)- 3' | 17 | - |
| 1KP7_A | 51 | 1KP7 | Hepatitis C Virus Internal Ribosome Entry Site Fragment | 30 | - |
| 1KPD_A | 67 | 1KPD | RNA PSEUDOKNOT APKA27G | 32 | - |
| 1KPY_A | 90 | 1KPY | P1-P2 frameshifting pseudoknot | 33 | - |
| 1KPZ_A | 90 | 1KPZ | P1-P2 frameshifting pseudoknot | 33 | - |
| 1KQ2_R | 91 | 1KQ2 | 5'-R(*AP*UP*UP*UP*UP*UP*G)-3' | 7 | - |
| 1KQS_0 | 53 | 1KQS | 23S RRNA | 2922 | RF02540 |
| 1KQS_9 | 27 | 1KQS | 5S RRNA | 122 | RF00001 |
| 1KUQ_B | 35 | 1KUQ | 16S RIBOSOMAL RNA FRAGMENT | 57 | - |
| 1KXK_A | 92 | 1KXK | ai5g group II Self-splicing intron | 70 | RF00029 |
| 1L1C_C | 10 | 1L1C | licT mRNA antiterminator hairpin | 29 | - |
| 1L1W_A | 2 | 1L1W | SRP19 binding domain of SRP RNA | 29 | - |
| 1L2X_A | 90 | 1L2X | RNA pseudoknot | 28 | - |
| 1L3D_A | 90 | 1L3D | RNA pseudoknot | 28 | - |
| 1L3Z_A | 1 | 1L3Z | 5'-R(*GP*UP*AP*UP*AP*CP*A)-3' | 7 | - |
| 1L3Z_B | 1 | 1L3Z | 5'-R(*GP*UP*AP*UP*AP*CP*A)-3' | 7 | - |
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