| ID | Fold | PDBID | PDB annotation | Length | RFam ID |
| 2A2E_A | 143 | 2A2E | RNA subunit of RNase P | 338 | RF00010 |
| 2A43_A | 90 | 2A43 | RNA Pseudoknot | 26 | - |
| 2A64_A | 165 | 2A64 | ribonuclease P RNA | 417 | RF00011 |
| 2A8V_E | 166 | 2A8V | 5'-R(P*CP*CP*CP*CP*CP*C)-3' | 6 | - |
| 2A9L_A | 6 | 2A9L | ABISS7 RNA | 38 | - |
| 2A9X_2 | 51 | 2A9X | BIV TAR RNA | 28 | - |
| 2AAR_0 | 53 | 2AAR | 23S ribosomal RNA | 2880 | RF02541 |
| 2AB4_B | 2 | 2AB4 | 5'-R(*CP*CP*AP*CP*GP*GP*UP*(FHU)P*CP*GP*AP*AP*UP*CP*CP*GP*UP*GP*GP*C)-3' | 20 | - |
| 2AD9_B | 167 | 2AD9 | 5'-R(*CP*UP*CP*UP*CP*U)-3' | 6 | - |
| 2ADB_B | 168 | 2ADB | 5'-R(*CP*UP*CP*UP*CP*U)-3' | 6 | - |
| 2ADC_B | 169 | 2ADC | 5'-R(*CP*UP*CP*UP*CP*U)-3' | 6 | - |
| 2ADC_C | 170 | 2ADC | 5'-R(*CP*UP*CP*UP*CP*U)-3' | 6 | - |
| 2ADT_A | 171 | 2ADT | 43-MER | 43 | - |
| 2ADT_B | 171 | 2ADT | 43-MER | 43 | - |
| 2AHT_A | 2 | 2AHT | 27-MER | 27 | - |
| 2AKE_B | 14 | 2AKE | transfer RNA-Trp | 72 | RF00005 |
| 2ANN_B | 20 | 2ANN | 5'-R(*CP*GP*CP*GP*CP*GP*GP*AP*UP*CP*AP*GP*UP*CP*AP*CP*CP*CP*AP*AP*GP*CP*GP*CP*G)-3' | 25 | - |
| 2ANR_B | 20 | 2ANR | 5'-R(*CP*(5BU)P*CP*GP*CP*GP*GP*AP*UP*CP*AP*GP*UP*CP*AP*CP*CP*CP*AP*AP*GP*CP*GP*AP*G)-3' | 25 | - |
| 2AO5_A | 1 | 2AO5 | 5'-R(*GP*GP*CP*GP*(5BU)P*GP*CP*GP*CP*U)-3' | 10 | - |
| 2AO5_B | 161 | 2AO5 | 5'-R(*GP*GP*CP*GP*(5BU)P*GP*CP*GP*CP*U)-3' | 10 | - |
| All have 680 pages [1]...[62]63[64]...[680] |