| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 1DDY_C | 34 | 1DDY | VITAMIN B12 BINDING RNA | 35 | - |
| 1DDY_E | 34 | 1DDY | VITAMIN B12 BINDING RNA | 35 | - |
| 1DDY_G | 34 | 1DDY | VITAMIN B12 BINDING RNA | 35 | - |
| 1DFU_M | 1 | 1DFU | 5S RRNA | 19 | - |
| 1DFU_N | 1 | 1DFU | 5S RRNA | 19 | - |
| 1DI2_C | 1 | 1DI2 | RNA (5'-R(*GP*GP*CP*GP*CP*GP*CP*GP*CP*C)-3') | 10 | - |
| 1DI2_D | 1 | 1DI2 | RNA (5'-R(*GP*GP*CP*GP*CP*GP*CP*GP*CP*C)-3') | 10 | - |
| 1DI2_E | 1 | 1DI2 | RNA (5'-R(*GP*GP*CP*GP*CP*GP*CP*GP*CP*C)-3') | 10 | - |
| 1DI2_G | 1 | 1DI2 | RNA (5'-R(*GP*GP*CP*GP*CP*GP*CP*GP*CP*C)-3') | 10 | - |
| 1DK1_B | 35 | 1DK1 | RRNA FRAGMENT | 57 | - |
| 1DQF_A | 1 | 1DQF | RNA (5'-R(*GP*CP*CP*AP*CP*CP*CP*UP*G)-3') | 9 | - |
| 1DQF_B | 1 | 1DQF | RNA (5'-R(*CP*AP*GP*GP*GP*UP*CP*GP*GP*C)-3') | 10 | - |
| 1DQH_A | 1 | 1DQH | RNA (5'-R(*GP*CP*CP*AP*CP*CP*CP*UP*G)-3') | 9 | - |
| 1DQH_B | 1 | 1DQH | RNA (5'-R(*CP*AP*GP*GP*GP*UP*CP*GP*GP*C)-3') | 10 | - |
| 1DRR_B | 1 | 1DRR | RNA (5'-R(*GP*CP*UP*UP*CP*UP*CP*UP*UP*C)-3') | 10 | - |
| 1DRZ_B | 36 | 1DRZ | RNA (HEPATITIS DELTA VIRUS GENOMIC RIBOZYME) | 72 | - |
| 1DUH_A | 37 | 1DUH | 4.5S RNA DOMAIN IV | 45 | - |
| 1DUL_B | 38 | 1DUL | 4.5 S RNA DOMAIN IV | 49 | - |
| 1DUQ_A | 1 | 1DUQ | THE REV BINDING ELEMENT | 12 | - |
| 1DUQ_B | 30 | 1DUQ | THE REV BINDING ELEMENT | 14 | - |
| All have 680 pages [1]...[5]6[7]...[680] |