| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 6S47_AA | 53 | 6S47 | 28S ribosomal RNA | 3149 | RF02543 |
| 6S47_AB | 27 | 6S47 | 5S ribosomal RNA | 121 | RF00001 |
| 6S47_AC | 544 | 6S47 | 5.8S ribosomal RNA | 158 | RF00002 |
| 6S47_BA | 56 | 6S47 | 18S rRNA (1707-MER) | 1707 | RF01960 |
| 6S6B_V | 385 | 6S6B | crRNA (51-mer) | 51 | - |
| 6S8B_U | 580 | 6S8B | Cognate target RNA (46-mer) | 46 | - |
| 6S8B_V | 385 | 6S8B | crRNA | 51 | - |
| 6S8E_U | 580 | 6S8E | Non-cognate target RNA | 50 | - |
| 6S8E_V | 385 | 6S8E | crRNA | 51 | - |
| 6S91_U | 580 | 6S91 | Cognate target RNA | 46 | - |
| 6S91_V | 385 | 6S91 | crRNA (48-MER) | 51 | - |
| 6SDW_B | 10 | 6SDW | hARF1 SBS dsRNA | 34 | - |
| 6SDY_B | 10 | 6SDY | hARF1 SBS dsRNA | 34 | - |
| 6SG9_CA | 750 | 6SG9 | 9S rRNA | 802 | RF02545 |
| 6SGA_CA | 737 | 6SGA | 9S rRNA | 474 | RF02545 |
| 6SGB_CA | 737 | 6SGB | 9S rRNA | 620 | RF02545 |
| 6SGC_A1 | 56 | 6SGC | 18S ribosomal RNA | 1869 | RF01960 |
| 6SGC_i1 | 546 | 6SGC | polyA mRNA | 10 | - |
| 6SGC_54 | 53 | 6SGC | 28S ribosomal RNA | 3603 | RF02543 |
| 6SGC_74 | 27 | 6SGC | 5S ribosomal RNA | 120 | RF00001 |
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