Prespliceosome structure provides insight into spliceosome assembly and regulation (map A2)
Resolution: 4.0 Å
EM Method: Single-particle
Fitted PDBs: 6g90
Q-score: 0.152
Plaschka C, Lin PC, Charenton C, Nagai K
Nature (2018) 559 pp. 419-422 [ Pubmed: 29995849 DOI: doi:10.1038/s41586-018-0323-8 ]
- Small nuclear ribonucleoprotein-associated protein b (22 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor rds3 (12 kDa, Protein from Saccharomyces cerevisiae)
- Rds3 complex subunit 10 (10 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein 70 kda homolog,u1 small nuclear ribonucleoprotein 70 kda homolog,u1 small nuclear ribonucleoprotein 70 kda homolog (33 kDa, Protein from Saccharomyces cerevisiae)
- Protein hsh49 (24 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein c (27 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-processing factor 39 (74 kDa, Protein from Saccharomyces cerevisiae)
- Prespliceosome a complex (1 MDa, Complex from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Saccharomyces cerevisiae)
- Yeast ubc4 pre-mrna (mutant) (12 kDa, RNA from Saccharomyces cerevisiae)
- U2 small nuclear ribonucleoprotein b'' (12 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d1 (16 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor rse1 (153 kDa, Protein from Saccharomyces cerevisiae)
- Protein nam8 (57 kDa, Protein from Saccharomyces cerevisiae)
- 56 kda u1 small nuclear ribonucleoprotein component (56 kDa, Protein from Saccharomyces cerevisiae)
- U1 snrna,u1 snrna,u1 snrna,u1 snrna,u1 snrna (126 kDa, RNA from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein component snu71 (71 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor prp21 (33 kDa, Protein from Saccharomyces cerevisiae)
- Unknown (4 kDa, Protein from Saccharomyces cerevisiae)
- Zinc ion (65 Da, Ligand)
- U2 snrnp component hsh155 (110 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d2 (12 kDa, Protein from Saccharomyces cerevisiae)
- Cold sensitive u2 snrna suppressor 1 (50 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor prp9 (63 kDa, Protein from Saccharomyces cerevisiae)
- U2 snrna (45 kDa, RNA from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor prp11,pre-mrna-splicing factor prp11,pre-mrna-splicing factor prp11 (29 kDa, Protein from Saccharomyces cerevisiae)
- Protein luc7,protein luc7,protein luc7 (28 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein a,u1 small nuclear ribonucleoprotein a,u1 small nuclear ribonucleoprotein a,u1 small nuclear ribonucleoprotein a,u1 small nuclear ribonucleoprotein a (33 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein component prp42 (65 kDa, Protein from Saccharomyces cerevisiae)
- U2 small nuclear ribonucleoprotein a' (27 kDa, Protein from Saccharomyces cerevisiae)
Cryo-EM structure of a pre-catalytic human spliceosome primed for activation (B complex)
Resolution: 4.5 Å
EM Method: Single-particle
Fitted PDBs: 5o9z
Q-score: 0.17
Bertram K, Agafonov DE, Dybkov O, Haselbach D, Leelaram MN, Will CL, Urlaub H, Kastner B, Luhrmann R, Stark H
Cell (2017) 170 pp. 701-713.e11 [ Pubmed: 28781166 DOI: doi:10.1016/j.cell.2017.07.011 ]
- U4/u6 small nuclear ribonucleoprotein prp31 (55 kDa, Protein from Human)
- Splicing factor 3b subunit 3 (sf3b3) (135 kDa, Protein from Human)
- Splicing factor 3b subunit 1 (146 kDa, Protein from Human)
- Homo sapiens u4a snrna (46 kDa, RNA from Human)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Human)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Human)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Human)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Human)
- U4/u6 small nuclear ribonucleoprotein prp4 (58 kDa, Protein from Human)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Human)
- Zinc finger matrin-type protein 2 (23 kDa, Protein from Human)
- Nhp2-like protein 1 (14 kDa, Protein from Human)
- Pre-mrna-splicing factor 38a (37 kDa, Protein from Human)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Human)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Human)
- Protein red (65 kDa, Protein from Human)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Human)
- Homo sapiens u5 a small nuclear rna (36 kDa, RNA from Human)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Human)
- Homo sapiens rna, u6 small nuclear 1 (rnu6-1), small nuclear rna (34 kDa, RNA from Human)
- U5 small nuclear ribonucleoprotein 200 kda helicase (244 kDa, Protein from Human)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Human)
- Peptidyl-prolyl cis-trans isomerase h (19 kDa, Protein from Human)
- Minx pre-mrna (103 kDa, RNA from Human)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Human)
- Ww domain-binding protein 4 (42 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Human)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Human)
- Microfibrillar-associated protein 1 (52 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Human)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Human)
- Human b complex spliceosome, sharpened map, masked refinement (Complex from Homo sapiens)
- Wd40 repeat-containing protein smu1 (57 kDa, Protein from Human)
- Human gene for small nuclear rna u2 (snrna u2) (60 kDa, RNA from Human)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Human)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Human)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Human)
- U4/u6 small nuclear ribonucleoprotein prp3 (77 kDa, Protein from Human)
- Thioredoxin-like protein 4a (16 kDa, Protein from Human)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Human)
Structure of a spliceosome remodeled for exon ligation
Resolution: 4.17 Å
EM Method: Single-particle
Fitted PDBs: 5mq0
Q-score: 0.223
Fica SM, Oubridge C, Galej WP, Wilkinson ME, Bai XC, Newman AJ, Nagai K
Nature (2017) 542 pp. 377-380 [ DOI: doi:10.1038/nature21078 Pubmed: 28076345 ]
- Small nuclear ribonucleoprotein-associated protein b (22 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor snu114 (114 kDa, Protein from Saccharomyces cerevisiae)
- Potassium ion (39 Da, Ligand)
- 5'-exon of ubc4 pre-mrna (6 kDa, RNA from Saccharomyces cerevisiae)
- Saccharomyces cerevisiae strain t.52_2h chromosome xii sequence (35 kDa, RNA from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor snt309 (20 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor 8 (279 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor syf2 (24 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor prp46 (50 kDa, Protein from Saccharomyces cerevisiae)
- 3'-exon of ubc4 pre-mrna, bound by prp22 helicase (873 Da, RNA from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor syf1,pre-mrna-splicing factor syf1 (101 kDa, Protein from Saccharomyces cerevisiae)
- Magnesium ion (24 Da, Ligand)
- Yeast ubc4 gene for ubiquitin-conjugating enzyme (30 kDa, RNA from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor cwc21 (15 kDa, Protein from Saccharomyces cerevisiae)
- S.cerevisiae chromosome ii reading frame orf ybr230c (376 kDa, RNA from Saccharomyces cerevisiae)
- Saccharomyces cerevisiae strain wi_c_mbsp_4 chromosome vii sequence (57 kDa, RNA from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor slt11 (40 kDa, Protein from Saccharomyces cerevisiae)
- Unknown protein (5 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor bud31 (18 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor slu7 (44 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-processing factor 19 (56 kDa, Protein from Saccharomyces cerevisiae)
- U2 small nuclear ribonucleoprotein b'' (12 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d1 (16 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-processing factor 17 (52 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-processing protein 45 (42 kDa, Protein from Saccharomyces cerevisiae)
- Zinc ion (65 Da, Ligand)
- Small nuclear ribonucleoprotein sm d2 (12 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor cef1 (67 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor atp-dependent rna helicase prp22 (130 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor 18 (28 kDa, Protein from Saccharomyces cerevisiae)
- Saccharomyces cerevisiae spliceosome. complex c just after prp16-mediated remodeling (Complex)
- Pre-mrna-splicing factor cwc2 (38 kDa, Protein from Saccharomyces cerevisiae)
- Inositol hexakisphosphate (660 Da, Ligand)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Saccharomyces cerevisiae)
- Guanosine-5'-triphosphate (523 Da, Ligand)
- Pre-mrna-splicing factor cwc22 (67 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor cwc15 (19 kDa, Protein from Saccharomyces cerevisiae)
- U2 small nuclear ribonucleoprotein a' (27 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor clf1 (82 kDa, Protein from Saccharomyces cerevisiae)
Head region of the yeast spliceosomal U4/U6.U5 tri-snRNP
Resolution: 4.2 Å
EM Method: Single-particle
Fitted PDBs: 5gao
Q-score: 0.305
Nguyen TH, Galej WP, Bai XC, Oubridge C, Newman AJ, Scheres SH, Nagai K
Nature (2016) 530 pp. 298-302 [ Pubmed: 26829225 DOI: doi:10.1038/nature16940 ]
- Small nuclear ribonucleoprotein sm d1 (16 kDa, Protein from Saccharomyces cerevisiae)
- Saccharomyces cerevisiae strain uoa_m2 chromosome 5 sequence (30 kDa, RNA from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein-associated protein b (22 kDa, Protein from Saccharomyces cerevisiae)
- Snu66 (25 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor 8 (30 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d2 (12 kDa, Protein from Saccharomyces cerevisiae)
- Head region of the yeast spliceosomal u4/u6.u5 tri-snrnp (400 kDa, Complex from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing helicase brr2 (246 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Saccharomyces cerevisiae)