| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 6HCT_A | 137 | 6HCT | RNA (5'-R(*GP*CP*CP*GP*AP*UP*GP*AP*AP*UP*GP*CP*AP*UP*GP*AP*AP*GP*C)-3') | 19 | - |
| 6HCT_B | 137 | 6HCT | RNA (5'-R(*GP*CP*CP*GP*AP*UP*GP*AP*AP*UP*GP*CP*AP*UP*GP*AP*AP*GP*C)-3') | 19 | - |
| 6HCT_E | 137 | 6HCT | RNA (5'-R(*GP*CP*CP*GP*AP*UP*GP*AP*AP*UP*G)-3') | 11 | - |
| 6HCT_F | 137 | 6HCT | RNA (5'-R(P*CP*AP*UP*GP*AP*AP*GP*C)-3') | 8 | - |
| 6HD7_1 | 53 | 6HD7 | Saccharomyces cerevisiae S288C 35S pre-ribosomal RNA (RDN37-1), miscRNA | 3396 | RF02543 |
| 6HD7_3 | 27 | 6HD7 | 5S rRNA | 121 | RF00001 |
| 6HD7_4 | 544 | 6HD7 | 5.8S rRNA | 158 | RF00002 |
| 6HD7_A | 14 | 6HD7 | tRNA | 76 | RF00005 |
| 6HD7_B | 14 | 6HD7 | P-site tRNA | 77 | RF00005 |
| 6HHQ_1 | 53 | 6HHQ | 25S ribosomal RNA | 3396 | RF02543 |
| 6HHQ_3 | 27 | 6HHQ | 5S ribosomal RNA | 121 | RF00001 |
| 6HHQ_4 | 544 | 6HHQ | 5.8S ribosomal RNA | 158 | RF00002 |
| 6HHQ_AR | 53 | 6HHQ | 25S ribosomal RNA | 3396 | RF02543 |
| 6HHQ_AS | 27 | 6HHQ | 5S ribosomal RNA | 121 | RF00001 |
| 6HHQ_AT | 544 | 6HHQ | 5.8S ribosomal RNA | 158 | RF00002 |
| 6HHQ_A | 56 | 6HHQ | 18S ribosomal RNA | 1797 | RF01960 |
| 6HHQ_sR | 56 | 6HHQ | 18S ribosomal RNA | 1800 | RF01960 |
| 6HIV_CA | 737 | 6HIV | 9s rRNA | 621 | RF02545 |
| 6HIV_AA | 738 | 6HIV | 12S rRNA | 1179 | RF02546 |
| 6HIW_CA | 737 | 6HIW | 9S rRNA | 621 | RF02545 |
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