| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 4NYB_A | 180 | 4NYB | thiM TPP riboswitch | 83 | RF00059 |
| 4NYC_A | 180 | 4NYC | thiM TPP riboswitch | 83 | RF00059 |
| 4NYD_A | 180 | 4NYD | thiM TPP riboswitch | 83 | RF00059 |
| 4NYG_A | 180 | 4NYG | thiM TPP riboswitch | 83 | RF00059 |
| 4O26_E | 421 | 4O26 | Telomerase TR | 51 | - |
| 4O26_F | 421 | 4O26 | Telomerase TR | 51 | - |
| 4O41_A | 1 | 4O41 | AMIDE LINKED RNA | 12 | - |
| 4O41_B | 1 | 4O41 | AMIDE LINKED RNA | 12 | - |
| 4O41_C | 1 | 4O41 | AMIDE LINKED RNA | 12 | - |
| 4O41_D | 1 | 4O41 | AMIDE LINKED RNA | 12 | - |
| 4OE1_C | 415 | 4OE1 | psaJ RNA | 18 | - |
| 4OE1_D | 416 | 4OE1 | psaJ RNA | 18 | - |
| 4OJI_A | 422 | 4OJI | RNA (52-MER) | 54 | - |
| 4OL8_C | 1 | 4OL8 | 5'-R(*CP*UP*GP*AP*GP*AP*GP*AP*GP*AP*GP*GP*AP*AP*GP*AP*UP*G)-3' | 18 | - |
| 4OL8_G | 1 | 4OL8 | 5'-R(*CP*UP*GP*AP*GP*AP*GP*AP*GP*AP*GP*GP*AP*AP*GP*AP*UP*G)-3' | 18 | - |
| 4OLA_B | 402 | 4OLA | 5'-R(P*AP*AP*AP*AP*AP*AP*AP*AP*AP*U)-3' | 10 | - |
| 4OLB_B | 402 | 4OLB | 5'-R(P*AP*AP*AP*AP*AP*AP*AP*AP*AP*U)-3' | 10 | - |
| 4OO1_S | 423 | 4OO1 | POLY A RNA | 24 | - |
| 4OO8_B | 424 | 4OO8 | RNA (97-MER) | 98 | - |
| 4OO8_E | 424 | 4OO8 | RNA (97-MER) | 98 | - |
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