| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 4QQB_P | 19 | 4QQB | msl2 mRNA | 18 | - |
| 4QVI_B | 108 | 4QVI | fragment of 23S rRNA | 80 | RF02541 |
| 4QYZ_L | 433 | 4QYZ | RNA (55-MER) | 61 | - |
| 4R0D_A | 434 | 4R0D | GROUP IIB INTRON LARIAT | 622 | RF00029,RF02012 |
| 4R0D_B | 435 | 4R0D | LIGATED EXONS | 20 | - |
| 4R4P_A | 436 | 4R4P | VS ribozyme RNA | 186 | - |
| 4R4V_A | 436 | 4R4V | VS ribozyme RNA | 186 | - |
| 4RBQ_A | 129 | 4RBQ | U-Helix RNA from Trypanosome editing | 32 | - |
| 4RBY_A | 1 | 4RBY | 5'-R(*CP*GP*CP*(2SG)P*AP*AP*UP*UP*AP*GP*CP*G)-3' | 12 | - |
| 4RBZ_A | 1 | 4RBZ | 5'-R(*CP*GP*CP*GP*(A2M)P*(ADS)P*UP*UP*AP*GP*CP*G)-3' | 12 | - |
| 4RC0_A | 1 | 4RC0 | 5'-R(*CP*GP*CP*GP*AP*AP*UP*UP*(A2M)P*(2SG)P*CP*G)-3' | 12 | - |
| 4RDX_C | 14 | 4RDX | tRNA(his) | 78 | RF00005 |
| 4RGE_A | 422 | 4RGE | env22 twister ribozyme | 56 | - |
| 4RGE_B | 422 | 4RGE | env22 twister ribozyme | 56 | - |
| 4RGE_C | 422 | 4RGE | env22 twister ribozyme | 56 | - |
| 4RGF_A | 422 | 4RGF | env22 twister ribozyme | 56 | - |
| 4RGF_B | 422 | 4RGF | env22 twister ribozyme | 56 | - |
| 4RGF_C | 422 | 4RGF | env22 twister ribozyme | 56 | - |
| 4RJ1_A | 73 | 4RJ1 | RNA (5'-R(*UP*GP*GP*GP*GP*U)-3') | 6 | - |
| 4RJ1_B | 73 | 4RJ1 | RNA (5'-R(*UP*GP*GP*GP*GP*U)-3') | 6 | - |
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