| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 3X1L_I | 385 | 3X1L | RNA (32-MER) | 39 | - |
| 3ZC0_M | 128 | 3ZC0 | 5'-R(*UP*UP*CP*GP*AP*CP*GP*CP*GP*UP*CP*GP*AP*AP*UP*U)-3' | 16 | - |
| 3ZC0_N | 128 | 3ZC0 | 5'-R(*UP*UP*CP*GP*AP*CP*GP*CP*GP*UP*CP*GP*AP*AP*UP*U)-3' | 16 | - |
| 3ZC0_O | 128 | 3ZC0 | 5'-R(*UP*UP*CP*GP*AP*CP*GP*CP*GP*UP*CP*GP*AP*AP*UP*U)-3' | 16 | - |
| 3ZD4_A | 259 | 3ZD4 | HAMMERHEAD RIBOZYME, ENZYME STRAND | 43 | - |
| 3ZD4_B | 260 | 3ZD4 | HAMMERHEAD RIBOZYME, SUBSTRATE STRAND | 20 | - |
| 3ZD5_A | 259 | 3ZD5 | HAMMERHEAD RIBOZYME, ENZYME STRAND | 43 | - |
| 3ZD5_B | 260 | 3ZD5 | HAMMERHEAD RIBOZYME, SUBSTRATE STRAND | 20 | - |
| 3ZD6_C | 1 | 3ZD6 | RNA DUPLEX | 10 | - |
| 3ZD6_D | 1 | 3ZD6 | RNA DUPLEX | 10 | - |
| 3ZD7_C | 1 | 3ZD7 | RNA DUPLEX | 10 | - |
| 3ZD7_D | 1 | 3ZD7 | RNA DUPLEX | 10 | - |
| 3ZGZ_B | 14 | 3ZGZ | TRNA-LEU UAA ISOACCEPTOR | 88 | RF00005 |
| 3ZGZ_E | 14 | 3ZGZ | TRNA-LEU UAA ISOACCEPTOR | 88 | RF00005 |
| 3ZJT_B | 14 | 3ZJT | TRNALEU5 UAA ISOACCEPTOR | 88 | RF00005 |
| 3ZJU_B | 14 | 3ZJU | TRNALEU5 UAA ISOACCEPTOR | 87 | RF00005 |
| 3ZJV_B | 14 | 3ZJV | TRNALEU5 UAA ISOACCEPTOR | 87 | RF00005 |
| 3ZLA_I | 386 | 3ZLA | RNA | 44 | - |
| 3ZLA_J | 386 | 3ZLA | RNA | 44 | - |
| 3ZN8_G | 38 | 3ZN8 | 4.5 S RNA | 88 | RF00169 |
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