Yeast U1 snRNP with humanized U1C Zinc-Finger domain
Resolution: 3.49 Å
EM Method: Single-particle
Fitted PDBs: 8w2o
Q-score: 0.417
Chalivendra S, Shi S, Li X, Kuang Z, Giovinazzo J, Zhang L, Rossi J, Wang J, Saviola AJ, Welty R, Liu S, Vaeth KF, Zhou ZH, Hansen KC, Taliaferro JM, Zhao R
RNA (2024) 30 pp. 1070-1088 [ DOI: doi:10.1261/rna.079917.123 Pubmed: 38688558 ]
- Small nuclear ribonucleoprotein sm d2 (12 kDa, Protein from Saccharomyces cerevisiae S288C)
- Protein nam8 (57 kDa, Protein from Saccharomyces cerevisiae S288C)
- U1snrnp (Complex from Saccharomyces cerevisiae S288C)
- Small nuclear ribonucleoprotein sm d1 (16 kDa, Protein from Saccharomyces cerevisiae S288C)
- Small nuclear ribonucleoprotein-associated protein b (22 kDa, Protein from Saccharomyces cerevisiae S288C)
- Act1 pre-mrna (59 kDa, RNA from Saccharomyces cerevisiae S288C)
- U1 snrna (182 kDa, RNA from Saccharomyces cerevisiae S288C)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Saccharomyces cerevisiae S288C)
- 56 kda u1 small nuclear ribonucleoprotein component (56 kDa, Protein from Saccharomyces cerevisiae S288C)
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Saccharomyces cerevisiae S288C)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Saccharomyces cerevisiae S288C)
- U1 small nuclear ribonucleoprotein component prp42 (65 kDa, Protein from Saccharomyces cerevisiae S288C)
- Pre-mrna-processing factor 39 (74 kDa, Protein from Saccharomyces cerevisiae S288C)
- U1 small nuclear ribonucleoprotein a (40 kDa, Protein from Saccharomyces cerevisiae S288C)
- U1 small nuclear ribonucleoprotein 70 kda homolog (34 kDa, Protein from Saccharomyces cerevisiae S288C)
- U1 small nuclear ribonucleoprotein component snu71 (5 kDa, Protein from Saccharomyces cerevisiae S288C)
- Protein luc7 (30 kDa, Protein from Saccharomyces cerevisiae S288C)
- U1 small nuclear ribonucleoprotein c (27 kDa, Protein from Saccharomyces cerevisiae S288C)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Saccharomyces cerevisiae S288C)
The U2 part of Saccharomyces cerevisiae spliceosomal pre-A complex (delta BS-A ACT1)
Resolution: 9.0 Å
EM Method: Single-particle
Fitted PDBs: 7oqb
Q-score: 0.133
Zhang Z, Rigo N, Dybkov O, Fourmann JB, Will CL, Kumar V, Urlaub H, Stark H, Luhrmann R
Nature (2021) 596 pp. 296-300 [ DOI: doi:10.1038/s41586-021-03789-5 Pubmed: 34349264 ]
- Rds3 complex subunit 10 (9 kDa, Protein from Saccharomyces cerevisiae)
- U2 small nuclear ribonucleoprotein a' (27 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d1 (16 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein-associated protein b (22 kDa, Protein from Saccharomyces cerevisiae)
- S. cerevisiae spliceosomal pre-a complex (Complex from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Saccharomyces cerevisiae)
- Protein hsh49 (24 kDa, Protein from Saccharomyces cerevisiae)
- Act1 pre-mrna (delta-bs-a) (101 kDa, RNA from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Saccharomyces cerevisiae)
- U2 snrna (376 kDa, RNA from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor prp11 (31 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d2 (12 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Saccharomyces cerevisiae)
- U2 snrnp component hsh155 (110 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-processing atp-dependent rna helicase prp5 (96 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor prp21 (33 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor prp9 (63 kDa, Protein from Saccharomyces cerevisiae)
- U2 small nuclear ribonucleoprotein b'' (12 kDa, Protein from Saccharomyces cerevisiae)
- Cold sensitive u2 snrna suppressor 1 (50 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor rds3 (12 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor rse1 (153 kDa, Protein from Saccharomyces cerevisiae)
The U1 part of Saccharomyces cerevisiae spliceosomal pre-A complex (delta BS-A ACT1)
Resolution: 4.1 Å
EM Method: Single-particle
Fitted PDBs: 7oqc
Q-score: 0.243
Zhang Z, Rigo N, Dybkov O, Fourmann JB, Will CL, Kumar V, Urlaub H, Stark H, Luhrmann R
Nature (2021) 596 pp. 296-300 [ DOI: doi:10.1038/s41586-021-03789-5 Pubmed: 34349264 ]
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein-associated protein b (22 kDa, Protein from Saccharomyces cerevisiae)
- U1 snrna (182 kDa, RNA from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein c (27 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d2 (12 kDa, Protein from Saccharomyces cerevisiae)
- Protein luc7 (30 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein component snu71 (71 kDa, Protein from Saccharomyces cerevisiae)
- S. cerevisiae spliceosomal pre-a complex (Complex from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d1 (16 kDa, Protein from Saccharomyces cerevisiae)
- Act1 pre-mrna (delta bs-a),act1 pre-mrna (delta bs-a),act1 pre-mrna (delta bs-a),act1 pre-mrna (delta bs-a),act1 pre-mrna (delta bs-a),act1 pre-mrna (delta bs-a),act1 pre-mrna (delta bs-a),act1 pre-mrna (delta bs-a),act1 pre-mrna (delta bs-a) (111 kDa, RNA from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein a (34 kDa, Protein from Saccharomyces cerevisiae)
- Protein nam8 (57 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-processing factor 39 (74 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein component prp42 (65 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein 70 kda homolog (34 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Saccharomyces cerevisiae)
- 56 kda u1 small nuclear ribonucleoprotein component (56 kDa, Protein from Saccharomyces cerevisiae)
Saccharomyces cerevisiae spliceosomal pre-A complex (delta BS-A ACT1)
Resolution: 5.9 Å
EM Method: Single-particle
Fitted PDBs: 7oqe
Q-score: 0.121
Zhang Z, Rigo N, Dybkov O, Fourmann JB, Will CL, Kumar V, Urlaub H, Stark H, Luhrmann R
Nature (2021) 596 pp. 296-300 [ DOI: doi:10.1038/s41586-021-03789-5 Pubmed: 34349264 ]
- Act1 pre-mrna (delta bs-a) (111 kDa, RNA from Saccharomyces cerevisiae)
- U1 snrna (182 kDa, RNA from Saccharomyces cerevisiae)
- U2 small nuclear ribonucleoprotein a' (27 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d1 (16 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein-associated protein b (22 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein c (27 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein component prp42 (65 kDa, Protein from Saccharomyces cerevisiae)
- S. cerevisiae spliceosomal pre-a complex (Complex from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Saccharomyces cerevisiae)
- Protein hsh49 (24 kDa, Protein from Saccharomyces cerevisiae)
- U2 snrna (376 kDa, RNA from Saccharomyces cerevisiae)
- Protein luc7 (30 kDa, Protein from Saccharomyces cerevisiae)
- Rds3 complex subunit 10 (10 kDa, Protein from Saccharomyces cerevisiae)
- 56 kda u1 small nuclear ribonucleoprotein component (56 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein component snu71 (71 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-processing factor 39 (74 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor prp11 (31 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d2 (12 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Saccharomyces cerevisiae)
- U2 snrnp component hsh155 (110 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-processing atp-dependent rna helicase prp5 (96 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor prp21 (33 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor prp9 (63 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein a (34 kDa, Protein from Saccharomyces cerevisiae)
- U2 small nuclear ribonucleoprotein b'' (12 kDa, Protein from Saccharomyces cerevisiae)
- Cold sensitive u2 snrna suppressor 1 (50 kDa, Protein from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Saccharomyces cerevisiae)
- Protein nam8 (57 kDa, Protein from Saccharomyces cerevisiae)
- U1 small nuclear ribonucleoprotein 70 kda homolog (34 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor rds3 (12 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-processing protein prp40 (69 kDa, Protein from Saccharomyces cerevisiae)
- Pre-mrna-splicing factor rse1 (153 kDa, Protein from Saccharomyces cerevisiae)
Saccharomyces cerevisiae spliceosomal E complex (ACT1)
Resolution: 3.2 Å
EM Method: Single-particle
Fitted PDBs: 6n7r
Q-score: 0.427
Li X, Liu S, Zhang L, Issaian A, Hill RC, Espinosa S, Shi S, Cui Y, Kappel K, Das R, Hansen KC, Zhou ZH, Zhao R
Nature (2019) 573 pp. 375-380 [ Pubmed: 31485080 DOI: doi:10.1038/s41586-019-1523-6 ]
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- U1 snrna (182 kDa, RNA from Saccharomyces cerevisiae)
- Protein luc7 (30 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein-associated protein b (22 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- 56 kda u1 small nuclear ribonucleoprotein component (56 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Protein nam8 (57 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- U1 small nuclear ribonucleoprotein c (27 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Saccharomyces cerevisiae spliceosomal e complex (act1) (Complex from Saccharomyces cerevisiae)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Act1 pre-mrna (70 kDa, RNA from Saccharomyces cerevisiae S288C)
- U1 small nuclear ribonucleoprotein 70 kda homolog (34 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- U1 small nuclear ribonucleoprotein component prp42 (65 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- U1 small nuclear ribonucleoprotein a (40 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-processing factor 39 (74 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein sm d1 (16 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Zinc ion (65 Da, Ligand)
- U1 small nuclear ribonucleoprotein component snu71,u1 small nuclear ribonucleoprotein component snu71,snu71 (9 kDa, Protein from Saccharomyces cerevisiae S288C)
- Small nuclear ribonucleoprotein sm d2 (12 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Cryo-EM structure of the yeast B*-a2 complex at an average resolution of 3.2 angstrom
Resolution: 3.2 Å
EM Method: Single-particle
Fitted PDBs: 6j6g
Q-score: 0.317
Wan R, Bai R, Yan C, Lei J, Shi Y
Cell (2019) 177 pp. 339-351.e13 [ Pubmed: 30879786 DOI: doi:10.1016/j.cell.2019.02.006 ]
- Act1 pre-mrna (217 kDa, RNA from Saccharomyces cerevisiae S288c)
- Pre-mrna-splicing factor isy1 (28 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- U5 snrna (68 kDa, RNA from Saccharomyces cerevisiae S288c)
- Inositol hexakisphosphate (660 Da, Ligand)
- Pre-mrna-splicing factor 8 (279 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor cwc15 (19 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor cwc21 (15 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor syf1 (100 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-processing factor 19 (56 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor cwc2 (38 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor clf1 (82 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein-associated protein b (22 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor bud31 (18 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- U6 snrna (35 kDa, RNA from Saccharomyces cerevisiae S288c)
- Pre-mrna-splicing factor cwc22 (67 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor snu114 (114 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Guanosine-5'-triphosphate (523 Da, Ligand)
- Pre-mrna-splicing factor prp46 (50 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor snt309 (20 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor slt11 (40 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- U2 small nuclear ribonucleoprotein a' (27 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor cef1 (67 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein sm d1 (16 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Catalytically activated spliceosome b*-a2 complex (Complex from Saccharomyces cerevisiae S288c)
- Pre-mrna-splicing factor syf2 (24 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-processing factor 17 (52 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Zinc ion (65 Da, Ligand)
- U2 snrna (376 kDa, RNA from Saccharomyces cerevisiae S288c)
- U2 small nuclear ribonucleoprotein b'' (12 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-processing protein 45 (42 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Magnesium ion (24 Da, Ligand)
- Small nuclear ribonucleoprotein sm d2 (12 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Cryo-EM structure of the yeast B*-a1 complex at an average resolution of 3.6 angstrom
Resolution: 3.6 Å
EM Method: Single-particle
Fitted PDBs: 6j6h
Q-score: 0.283
Wan R, Bai R, Yan C, Lei J, Shi Y
Cell (2019) 177 pp. 339-351.e13 [ DOI: doi:10.1016/j.cell.2019.02.006 Pubmed: 30879786 ]
- Pre-mrna-processing factor 19 (56 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor slt11 (40 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Guanosine-5'-triphosphate (523 Da, Ligand)
- Pre-mrna-splicing factor clf1 (82 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Zinc ion (65 Da, Ligand)
- Pre-mrna-splicing factor cwc22 (67 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor prp46 (50 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-processing factor 17 (52 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Inositol hexakisphosphate (660 Da, Ligand)
- Small nuclear ribonucleoprotein sm d1 (16 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor cef1 (67 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor isy1 (28 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor bud31 (18 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor snt309 (20 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein-associated protein b (22 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Catalytically activated spliceosome b*-a1 complex (Complex from Saccharomyces cerevisiae S288C)
- U2 small nuclear ribonucleoprotein b'' (12 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- U6 snrna (35 kDa, RNA from Saccharomyces cerevisiae S288c)
- U5 snrna (68 kDa, RNA from Saccharomyces cerevisiae S288c)
- Pre-mrna-splicing factor cwc15 (19 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor syf1 (100 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Act1 pre-mrna (217 kDa, RNA from Saccharomyces cerevisiae S288c)
- Small nuclear ribonucleoprotein sm d2 (12 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor syf2 (24 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor 8 (279 kDa, Protein from Saccharomyces cerevisiae S288c)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- U2 snrna (376 kDa, RNA from Saccharomyces cerevisiae S288c)
- Pre-mrna-splicing factor cwc2 (38 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Magnesium ion (24 Da, Ligand)
- Pre-mrna-splicing factor cwc21 (15 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-processing protein 45 (42 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- U2 small nuclear ribonucleoprotein a' (27 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
- Pre-mrna-splicing factor snu114 (114 kDa, Protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c))