| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 6RXZ_C1 | 489 | 6RXZ | 35S ribosomal RNA | 2323 | RF01960 |
| 6RXZ_C2 | 490 | 6RXZ | U3 snoRNA | 230 | RF01846 |
| 6RZZ_A | 53 | 6RZZ | 25S ribosomal RNA | 3396 | RF02543 |
| 6RZZ_x | 27 | 6RZZ | 5S ribosomal RNA | 121 | RF00001 |
| 6RZZ_y | 544 | 6RZZ | 5.8S ribosomal RNA | 158 | RF00002 |
| 6S05_A | 53 | 6S05 | 25S ribosomal RNA | 3396 | RF02543 |
| 6S05_x | 27 | 6S05 | 5S ribosomal RNA | 121 | RF00001 |
| 6S05_y | 544 | 6S05 | 5.8S ribosomal RNA | 158 | RF00002 |
| 6S0K_A | 53 | 6S0K | 23S ribosomal RNA | 2883 | RF02541 |
| 6S0K_B | 27 | 6S0K | 5S ribosomal RNA | 120 | RF00001 |
| 6S0X_A | 53 | 6S0X | 23S ribosomal RNA | 2905 | RF02541 |
| 6S0X_B | 27 | 6S0X | 5S ribosomal RNA | 115 | RF00001 |
| 6S0X_a | 56 | 6S0X | 16S ribosomal RNA | 1539 | RF00177 |
| 6S0Z_A | 53 | 6S0Z | 23S ribosomal RNA | 2905 | RF02541 |
| 6S0Z_B | 27 | 6S0Z | 5S ribosomal RNA | 114 | RF00001 |
| 6S12_A | 53 | 6S12 | 23S ribosomal RNA | 2905 | RF02541 |
| 6S12_B | 27 | 6S12 | 5S ribosomal RNA | 115 | RF00001 |
| 6S13_A | 53 | 6S13 | 23S ribosomal RNA | 2905 | RF02541 |
| 6S13_B | 27 | 6S13 | 5S ribosomal RNA | 115 | RF00001 |
| 6S13_a | 56 | 6S13 | 16S ribosomal RNA | 1539 | RF00177 |
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