| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 6L5N_D | 184 | 6L5N | poly(U)-15mer | 15 | - |
| 6LAS_A | 641 | 6LAS | RNA (55-MER) | 55 | - |
| 6LAS_B | 641 | 6LAS | RNA (55-MER) | 55 | - |
| 6LAU_A | 641 | 6LAU | RNA (54-MER) | 55 | - |
| 6LAU_B | 641 | 6LAU | RNA (54-MER) | 55 | - |
| 6LAX_A | 641 | 6LAX | RNA (55-MER) | 55 | - |
| 6LAX_B | 641 | 6LAX | RNA (55-MER) | 55 | - |
| 6LAZ_A | 641 | 6LAZ | RNA (55-MER) | 55 | - |
| 6LAZ_B | 641 | 6LAZ | RNA (55-MER) | 55 | - |
| 6LKQ_s | 56 | 6LKQ | 16S ribosomal RNA | 1532 | RF00177 |
| 6LKQ_t | 53 | 6LKQ | 23S ribosomal RNA | 2903 | RF02541 |
| 6LKQ_u | 27 | 6LKQ | 5S ribosomal RNA | 118 | RF00001 |
| 6LKQ_w | 300 | 6LKQ | messenger RNA | 6 | - |
| 6LLB_C | 650 | 6LLB | RNA (5'-R(P*AP*AP*AP*AP*AP*A)-3') | 6 | - |
| 6LLB_D | 650 | 6LLB | RNA (5'-R(P*AP*AP*AP*AP*AP*A)-3') | 6 | - |
| 6LNB_M | 547 | 6LNB | CRISPR RNA (60-MER) | 60 | - |
| 6LNC_M | 547 | 6LNC | CRISPR RNA (60-MER) | 60 | - |
| 6LQM_2 | 53 | 6LQM | 28S rRNA | 5070 | RF02543 |
| 6LQM_5 | 27 | 6LQM | 5S rRNA | 120 | RF00001 |
| 6LQM_8 | 544 | 6LQM | 5.8S rRNA | 156 | RF00002 |
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