1 | 7YGA|1|N (rep) | Group I catalytic intron | RNA (393-MER), RNA (5'-R(*CP*CP*CP*UP*CP*U)-3'), RNA (5'-R(*UP*CP*GP*(SSU)P*AP*AP*CP*C)-3') | Tetrahymena | Eukarya | RF00028 | Cryo-EM structure of Tetrahymena ribozyme conformation 2 undergoing the second-step self-splicing | Electron microscopy | 2.35 | 2023-03-29 |
2 | 7XD6|1|N | Group I catalytic intron | The Tet-S2 state with a pseudoknotted 4-way junction molecule of co-transcriptional folded wild-type Tetrahymena group I intron with 30nt 3'/5'-exon (5'-exon), The Tet-S2 state with a pseudoknotted 4-way junction molecule of co-transcriptional folded wild-type Tetrahymena group I intron with 30nt 3'/5'-exon (intron and 3'-exon) | Tetrahymena thermophila | Eukarya | RF00028 | The Tet-S2 state with a pseudoknotted 4-way junction of wild-type Tetrahymena group I intron with 30nt 3'/5'-exon | Electron microscopy | 2.84 | 2023-04-05 |
3 | 7YGB|1|N | Group I catalytic intron | RNA (393-MER), RNA (5'-R(*CP*CP*CP*UP*CP*UP*UP*AP*AP*CP*C)-3'), RNA (5'-R(*UP*CP*G)-3') | Tetrahymena | Eukarya | RF00028 | Cryo-EM structure of Tetrahymena ribozyme conformation 3 undergoing the second-step self-splicing | Electron microscopy | 2.62 | 2023-03-29 |
4 | 8I7N|1|N | | The Tet-S1 state molecule of co-transcriptional folded G264A mutated Tetrahymena group I intron with 6nt 3'/5'-exon and 2-aminopurine nucleoside | Tetrahymena thermophila | | | The Tet-S1 state of G264A mutated Tetrahymena group I intron with 6nt 3'/5'-exon and 2-aminopurine nucleoside | Electron microscopy | 2.98 | 2023-03-29 |
5 | 7YGC|1|N | Group I catalytic intron | RNA (393-MER), RNA (5'-R(*CP*CP*CP*UP*CP*UP*UP*AP*AP*CP*C)-3'), RNA (5'-R(*UP*CP*G)-3') | Tetrahymena | Eukarya | RF00028 | Cryo-EM structure of Tetrahymena ribozyme conformation 4 undergoing the second-step self-splicing | Electron microscopy | 2.65 | 2023-03-29 |
6 | 7XD5|1|N | Group I catalytic intron | The Tet-S2 state molecule of co-transcriptional folded wild-type Tetrahymena group I intron with 30nt 3'/5'-exon (5'-exon), The Tet-S2 state molecule of co-transcriptional folded wild-type Tetrahymena group I intron with 30nt 3'/5'-exon (intron and 3'-exon) | Tetrahymena thermophila | Eukarya | RF00028 | The Tet-S2 state of wild-type Tetrahymena group I intron with 30nt 3'/5'-exon | Electron microscopy | 2.84 | 2023-04-05 |
7 | 7YG9|1|N | Group I catalytic intron | RNA (391-MER), RNA (5'-R(*CP*CP*CP*UP*CP*U)-3'), RNA (5'-R(*UP*CP*GP*(SSU)P*AP*AP*C)-3') | Tetrahymena | Eukarya | RF00028 | Cryo-EM structure of Tetrahymena ribozyme conformation 1 undergoing the second-step self-splicing | Electron microscopy | 2.68 | 2023-03-29 |
8 | 7XD7|1|N | Group I catalytic intron | The pre-Tet-C state molecule of co-transcriptional folded wild-type Tetrahymena group I intron with 30nt 3'/5'-exon | Tetrahymena thermophila | Eukarya | RF00028 | The pre-Tet-C state of wild-type Tetrahymena group I intron with 30nt 3'/5'-exon | Electron microscopy | 3.02 | 2023-03-29 |
9 | 7EZ2|1|N | Group I catalytic intron | Holo L-16 ScaI Tetrahymena ribozyme, Holo L-16 ScaI Tetrahymena ribozyme S1, Holo L-16 ScaI Tetrahymena ribozyme S2 | Tetrahymena thermophila | Eukarya | RF00028 | Holo L-16 ScaI Tetrahymena ribozyme | Electron microscopy | 3.05 | 2021-08-25 |
10 | 7XSN|1|N | Group I catalytic intron | RNA (387-MER) | Tetrahymena thermophila | Eukarya | RF00028 | Native Tetrahymena ribozyme conformation | Electron microscopy | 3.01 | 2022-08-03 |
11 | 7YG8|1|N | Group I catalytic intron | RNA (387-MER), RNA (5'-R(*CP*CP*CP*UP*C)-3'), RNA (5'-R(*UP*CP*G)-3') | Tetrahymena | Eukarya | RF00028 | Cryo-EM structure of Tetrahymena ribozyme conformation 5 undergoing the second-step self-splicing | Electron microscopy | 2.97 | 2023-03-29 |
12 | 7EZ0|1|N | Group I catalytic intron | Apo L-21 ScaI Tetrahymena ribozyme | Tetrahymena thermophila | Eukarya | RF00028 | Apo L-21 ScaI Tetrahymena ribozyme | Electron microscopy | 3.14 | 2021-08-25 |
13 | 7R6L|1|A | Group I catalytic intron | Group I intron, 3 prime fragment plus 3 prime exon, Group I intron, 5 prime fragment | Tetrahymena thermophila | Eukarya | RF00028 | 5 prime exon-free pre-2S intermediate of the Tetrahymena group I intron, symmetry-expanded monomer from a synthetic dimeric construct | Electron microscopy | 2.85 | 2022-05-04 |
14 | 8HD7|1|N | | The intermediate pre-Tet-S1 state molecule of co-transcriptional folded G264A mutant Tetrahymena group I intron with 6nt 3'/5'-exon and 2-aminopurine nucleoside | Tetrahymena thermophila | | | The intermediate pre-Tet-S1 state of G264A mutated Tetrahymena group I intron with 6nt 3'/5'-exon and 2-aminopurine nucleoside | Electron microscopy | 3.52 | 2023-03-29 |
15 | 8HD6|1|N | | The relaxed pre-Tet-S1 state molecule of co-transcriptional folded G264A mutant Tetrahymena group I intron with 6nt 3'/5'-exon and 2-aminopurine nucleoside | Tetrahymena thermophila | | | The relaxed pre-Tet-S1 state of G264A mutated Tetrahymena group I intron with 6nt 3'/5'-exon and 2-aminopurine nucleoside | Electron microscopy | 3.73 | 2023-03-29 |
16 | 7YGD|1|N | Group I catalytic intron | RNA (384-MER), RNA (5'-R(*CP*C)-3'), RNA (5'-R(*UP*CP*G)-3') | Tetrahymena | Eukarya | RF00028 | Cryo-EM structure of Tetrahymena ribozyme conformation 6 undergoing the second-step self-splicing | Electron microscopy | 3.41 | 2023-03-29 |
17 | 7XD4|1|N | Group I catalytic intron | Co-transcriptional folded wild-type Tetrahymena group I intron with 6nt 3'/5'-exon | Tetrahymena thermophila | Eukarya | RF00028 | The intermediate pre-Tet-S1 state of wild-type Tetrahymena group I intron with 6nt 3'/5'-exon | Electron microscopy | 3.89 | 2023-03-29 |
18 | 7XD3|1|N | Group I catalytic intron | The relaxed pre-Tet-S1 state molecule of co-transcriptional folded wild-type Tetrahymena group I intron with 6nt 3'/5'-exon | Tetrahymena thermophila | Eukarya | RF00028 | The relaxed pre-Tet-S1 state of wild-type Tetrahymena group I intron with 6nt 3'/5'-exon | Electron microscopy | 4.05 | 2023-03-29 |
19 | 7XSK|1|N | Group I catalytic intron | RNA (388-MER) | Tetrahymena thermophila | Eukarya | RF00028 | Misfolded Tetrahymena ribozyme conformation 1 | Electron microscopy | 3.53 | 2022-08-03 |
20 | 7R6M|1|A | Group I catalytic intron | Group I intron, Ligated exon mimic of the Group I intron | Tetrahymena thermophila | Eukarya | RF00028 | Post-2S intermediate of the Tetrahymena group I intron, symmetry-expanded monomer from a synthetic dimeric construct | Electron microscopy | 3.68 | 2022-05-04 |
21 | 7UVT|1|A | Group I catalytic intron | RNA (386-MER) | Tetrahymena thermophila | Eukarya | RF00028 | Kinetically trapped misfolded state of the Tetrahymena ribozyme | Electron microscopy | 3.9 | 2022-08-31 |
22 | 7XSL|1|N | Group I catalytic intron | RNA (388-MER) | Tetrahymena thermophila | Eukarya | RF00028 | Misfolded Tetrahymena ribozyme conformation 2 | Electron microscopy | 3.84 | 2022-08-03 |
23 | 7XSM|1|N | Group I catalytic intron | RNA (388-MER) | Tetrahymena thermophila | Eukarya | RF00028 | Misfolded Tetrahymena ribozyme conformation 3 | Electron microscopy | 4.01 | 2022-08-03 |
24 | 7R6N|1|A | Group I catalytic intron | Group I intron | Tetrahymena thermophila | Eukarya | RF00028 | Exon-free state of the Tetrahymena group I intron, symmetry-expanded monomer from a synthetic trimeric construct | Electron microscopy | 4.1 | 2022-05-04 |
25 | 6WLS|11|A | Group I catalytic intron | RNA (388-MER) | Tetrahymena thermophila | Eukarya | RF00028 | Tetrahymena ribozyme models, 6.8 Angstrom resolution | Electron microscopy | 6.8 | 2020-07-08 |