| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 6XU8_A7 | 27 | 6XU8 | 5S ribosomal RNA | 120 | - |
| 6XU8_A8 | 544 | 6XU8 | 5.8S ribosomal RNA | 123 | - |
| 6XU8_A5 | 53 | 6XU8 | 28S ribosomal RNA | 3703 | - |
| 6XU8_B2 | 56 | 6XU8 | 18S ribosomal RNA | 1936 | - |
| 6XUR_A | 1 | 6XUR | RNA dodecamer with a 6-hydrazino-2-aminopurine modified base | 12 | - |
| 6XUS_A | 1 | 6XUS | RNA dodecamer with a 6-hydrazino-2-aminopurine modified base | 12 | - |
| 6XWJ_A | 2 | 6XWJ | RNA (5'-R(*GP*GP*UP*GP*CP*CP*UP*AP*AP*UP*AP*UP*UP*UP*AP*GP*GP*CP*AP*CP*C)-3') | 21 | - |
| 6XWW_A | 2 | 6XWW | CDE1 | 19 | - |
| 6XXA_A | 113 | 6XXA | CDE2 | 21 | - |
| 6XXB_A | 113 | 6XXB | CDE1 | 19 | - |
| 6XYW_1 | 53 | 6XYW | RNA (2842-MER) | 2842 | RF02541 |
| 6XYW_3 | 27 | 6XYW | RNA (118-MER) | 118 | - |
| 6XYW_2 | 56 | 6XYW | RNA (1743-MER) | 1743 | RF00177 |
| 6XZ7_A | 53 | 6XZ7 | 23S rRNA | 2897 | RF02541 |
| 6XZ7_B | 27 | 6XZ7 | 5S rRNA | 120 | RF00001 |
| 6XZ7_f | 14 | 6XZ7 | Deacylated tRNAi(Met) | 76 | RF00005 |
| 6XZ7_g | 14 | 6XZ7 | fMet-Phe-tRNA(Phe) | 76 | RF00005 |
| 6XZA_A1 | 56 | 6XZA | 16S rRNA | 1534 | RF00177 |
| 6XZA_A2 | 53 | 6XZA | 23S rRNA | 2897 | RF02541 |
| 6XZA_B2 | 27 | 6XZA | 5S rRNA | 120 | RF00001 |
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