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Cryo-EM structure of human exon-defined spliceosome in the late pre-B state.
Resolution: 3.2 Å
EM Method: Single-particle
Fitted PDBs: 8h6e
Q-score: 0.236
Zhang W, Zhang X, Zhan X, Bai R, Lei J, Yan C, Shi Y
Cell Res (2024) [ Pubmed: 38658629 DOI: doi:10.1038/s41422-024-00949-w ]
- Pre-mrna (45 kDa, RNA from Homo sapiens)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- U2 snrna (60 kDa, RNA from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- Guanosine-5'-triphosphate (523 Da, Ligand)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 200 kda helicase (244 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 2 (65 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- Exon-defined post pre-b spliceosome (2 MDa, Complex from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- Isoform sm-b of small nuclear ribonucleoprotein-associated proteins b and b' (23 kDa, Protein from Homo sapiens)
- Rna-binding protein 42 (50 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- U6 snrna (34 kDa, RNA from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 3 (135 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp4 (58 kDa, Protein from Homo sapiens)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- Inositol hexakisphosphate (660 Da, Ligand)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1 (14 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Serine/threonine-protein kinase prp4 homolog (117 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 1 (146 kDa, Protein from Homo sapiens)
- Zinc ion (65 Da, Ligand)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp3 (77 kDa, Protein from Homo sapiens)
- U5 snrna (37 kDa, RNA from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 kDa, Protein from Homo sapiens)
- Magnesium ion (24 Da, Ligand)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- U4/u6.u5 small nuclear ribonucleoprotein 27 kda protein (18 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
Cryo-EM structure of human exon-defined spliceosome in the mature pre-B state.
Resolution: 3.25 Å
EM Method: Single-particle
Fitted PDBs: 8h6j
Q-score: 0.224
Zhang W, Zhang X, Zhan X, Bai R, Lei J, Yan C, Shi Y
Cell Res (2024) [ Pubmed: 38658629 DOI: doi:10.1038/s41422-024-00949-w ]
- Pre-mrna (45 kDa, RNA from Homo sapiens)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- U2 snrna (60 kDa, RNA from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- Guanosine-5'-triphosphate (523 Da, Ligand)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 200 kda helicase (244 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 2 (65 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- Exon-defined post pre-b spliceosome (2 MDa, Complex from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- Isoform sm-b of small nuclear ribonucleoprotein-associated proteins b and b' (23 kDa, Protein from Homo sapiens)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- Rna-binding protein 42 (50 kDa, Protein from Homo sapiens)
- U6 snrna (34 kDa, RNA from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 3 (135 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp4 (58 kDa, Protein from Homo sapiens)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- Inositol hexakisphosphate (660 Da, Ligand)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1 (14 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Serine/threonine-protein kinase prp4 homolog (117 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 1 (146 kDa, Protein from Homo sapiens)
- Zinc ion (65 Da, Ligand)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp3 (77 kDa, Protein from Homo sapiens)
- U5 snrna (37 kDa, RNA from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 kDa, Protein from Homo sapiens)
- Magnesium ion (24 Da, Ligand)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- U4/u6.u5 small nuclear ribonucleoprotein 27 kda protein (18 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
Resolution: 3.38 Å
EM Method: Single-particle
Fitted PDBs: 8y6o
Q-score: 0.258
Bai R, Yuan M, Zhang P, Luo T, Shi Y, Wan R
Science (2024) 383 pp. 1245-1252 [ Pubmed: 38484052 DOI: doi:10.1126/science.adn7272 ]
- Guanosine-5'-triphosphate (523 Da, Ligand)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Homo sapiens)
- Pre-mrna (89 kDa, RNA from Homo sapiens)
- U5 small nuclear ribonucleoprotein 200 kda helicase (244 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 2 (65 kDa, Protein from Homo sapiens)
- Zinc finger matrin-type protein 5 (20 kDa, Protein from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp4 (58 kDa, Protein from Homo sapiens)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Human minor pre-b complex (1 MDa, Complex from Homo sapiens)
- U11/u12 small nuclear ribonucleoprotein 25 kda protein (15 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- U6atac snrna (40 kDa, RNA from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- Inositol hexakisphosphate (660 Da, Ligand)
- Nhp2-like protein 1 (14 kDa, Protein from Homo sapiens)
- U11/u12 small nuclear ribonucleoprotein 48 kda protein (40 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Homo sapiens)
- Centrosomal at-ac splicing factor (38 kDa, Protein from Homo sapiens)
- U11/u12 small nuclear ribonucleoprotein 35 kda protein (29 kDa, Protein from Homo sapiens)
- Zinc ion (65 Da, Ligand)
- U4/u6 small nuclear ribonucleoprotein prp3 (77 kDa, Protein from Homo sapiens)
- U5 snrna (37 kDa, RNA from Homo sapiens)
- U4atac snrna (42 kDa, RNA from Homo sapiens)
- Programmed cell death protein 7 (54 kDa, Protein from Homo sapiens)
- U11 snrna (43 kDa, RNA from Homo sapiens)
- Thioredoxin-like protein 4b (17 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 kDa, Protein from Homo sapiens)
- Magnesium ion (24 Da, Ligand)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Serine/threonine-protein kinase prp4 homolog (117 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
Structure of the human U5.U4/U6 tri-snRNP at 2.9A resolution.
Resolution: 2.92 Å
EM Method: Single-particle
Fitted PDBs: 6qw6
Q-score: 0.361
Charenton C, Wilkinson ME, Nagai K
Science (2019) 364 pp. 362-367 [ DOI: doi:10.1126/science.aax3289 Pubmed: 30975767 ]
- Rna-binding protein 42 (50 kDa, Protein from Human)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Human)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Human)
- U5.u4/u6 tri-snrnp (Complex from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Human)
- U5 snrna (37 kDa, RNA from Human)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Human)
- Inositol hexakisphosphate (660 Da, Ligand)
- 116 kda u5 small nuclear ribonucleoprotein component (95 kDa, Protein from Human)
- U4/u6.u5 tri-snrnp-associated protein 2 (64 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Human)
- U6 snrna (28 kDa, RNA from Human)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Human)
- Probable atp-dependent rna helicase ddx23 (Complex from Homo sapiens)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Human)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Human)
- Thioredoxin-like protein 4a (16 kDa, Protein from Human)
- U5 small nuclear ribonucleoprotein 200 kda helicase (244 kDa, Protein from Human)
- U4/u6.u5 small nuclear ribonucleoprotein 27 kda protein (18 kDa, Protein from Human)
- Pre-mrna-processing-splicing factor 8 (271 kDa, Protein from Human)
- U4 snrna (46 kDa, RNA from Human)
- Human u4/u6.u5 tri-snrnp (1 MDa, Complex)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Human)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Human)
- U4/u6 small nuclear ribonucleoprotein prp4 (58 kDa, Protein from Human)
- Guanosine-5'-triphosphate (523 Da, Ligand)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Human)
- Nhp2-like protein 1 (14 kDa, Protein from Human)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Human)
- U4/u6 small nuclear ribonucleoprotein prp3 (77 kDa, Protein from Human)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Human)
- Zinc ion (65 Da, Ligand)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Human)
- Magnesium ion (24 Da, Ligand)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 kDa, Protein from Human)
Structure of a human fully-assembled precatalytic spliceosome (pre-B complex).
Resolution: 3.28 Å
EM Method: Single-particle
Fitted PDBs: 6qx9
Q-score: 0.207
Charenton C, Wilkinson ME, Nagai K
Science (2019) 364 pp. 362-367 [ DOI: doi:10.1126/science.aax3289 Pubmed: 30975767 ]
- Rna-binding protein 42 (50 kDa, Protein from Human)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Human)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Human)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Human)
- U1 small nuclear ribonucleoprotein c (17 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Human)
- U2 snrna (60 kDa, RNA from Homo sapiens)
- Adml pre-mrna (15 kDa, RNA from Human adenovirus 2)
- Splicing factor 3a subunit 1,splicing factor 3a subunit 1,splicing factor 3a subunit 1 (71 kDa, Protein from Human)
- Inositol hexakisphosphate (660 Da, Ligand)
- U4/u6.u5 tri-snrnp-associated protein 2 (64 kDa, Protein from Human)
- Phd finger-like domain-containing protein 5a (11 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Human)
- Serine/threonine-protein kinase prp4 homolog (117 kDa, Protein from Human)
- Fully-assembled precatalytic spliceosome (pre-b complex). (Complex from Homo sapiens)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Human)
- Probable atp-dependent rna helicase ddx23 (Complex from Homo sapiens)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Human)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 kDa, Protein from Human)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Human)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Human)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Human)
- Splicing factor 3b subunit 1 (146 kDa, Protein from Human)
- 116 kda u5 small nuclear ribonucleoprotein component (95 kDa, Protein from Human)
- U5 small nuclear ribonucleoprotein 200 kda helicase (244 kDa, Protein from Human)
- Fully-assembled precatalytic spliceosome (pre-b complex). (3 MDa, Complex)
- U4/u6.u5 small nuclear ribonucleoprotein 27 kda protein (18 kDa, Protein from Human)
- Pre-mrna-processing-splicing factor 8 (271 kDa, Protein from Human)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Human)
- Pre-mrna-processing factor 6 (97 kDa, Protein from Human)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Human)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Human)
- U4/u6 small nuclear ribonucleoprotein prp4 (58 kDa, Protein from Human)
- U1 snrna (52 kDa, RNA from Homo sapiens)
- U1 small nuclear ribonucleoprotein a (31 kDa, Protein from Human)
- Guanosine-5'-triphosphate (523 Da, Ligand)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Human)
- U6 snrna (34 kDa, RNA from Homo sapiens)
- Nhp2-like protein 1 (14 kDa, Protein from Human)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Human)
- Splicing factor 3b subunit 3 (135 kDa, Protein from Human)
- U4/u6 small nuclear ribonucleoprotein prp3 (77 kDa, Protein from Human)
- Zinc ion (65 Da, Ligand)
- U5 snrna (37 kDa, RNA from Homo sapiens)
- Adml pre-mrna (Complex from Human adenovirus 2)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Human)
- U1 small nuclear ribonucleoprotein 70 kda (51 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Human)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Human)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Human)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Human)
- Splicing factor 3a subunit 2 (24 kDa, Protein from Human)
- Magnesium ion (24 Da, Ligand)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Human)
The Cryo-EM Structure of the Precusor of Human Pre-catalytic Spliceosome (pre-B complex)
Resolution: 5.7 Å
EM Method: Single-particle
Fitted PDBs: 6ah0
Q-score: 0.12
Zhan X, Yan C, Zhang X, Lei J, Shi Y
Cell Res (2018) 28 pp. 1129-1140 [ DOI: doi:10.1038/s41422-018-0094-7 Pubmed: 30315277 ]
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- U2snrna (60 kDa, RNA from Homo sapiens)
- U4snrna (46 kDa, RNA from Homo sapiens)
- Guanosine-5'-triphosphate (523 Da, Ligand)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 200 kda helicase (244 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 2 (65 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (23 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 3 (135 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp4 (58 kDa, Protein from Homo sapiens)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- Inositol hexakisphosphate (660 Da, Ligand)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1 (14 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- U6snrna (34 kDa, RNA from Homo sapiens)
- Splicing factor 3b subunit 1 (146 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp3 (77 kDa, Protein from Homo sapiens)
- U5snrna (37 kDa, RNA from Homo sapiens)
- Spliceosome (Complex from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 kDa, Protein from Homo sapiens)
- Magnesium ion (24 Da, Ligand)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- Pre-mrna (87 kDa, RNA from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)