Structure of a B-state intermediate committed to discard (Bd-I state)
Resolution: 3.2 Å
EM Method: Single-particle
Fitted PDBs: 9esh
Q-score: 0.324
Soni K, Horvath A, Dybkov O, Schwan M, Trakansuebkul S, Flemming D, Wild K, Urlaub H, Fischer T, Sinning I
Nat Struct Mol Biol (2025) [ Pubmed: 39833470 DOI: doi:10.1038/s41594-024-01480-7 ]
- Pre-mrna-splicing factor cwf11 (148 kDa, Protein from Schizosaccharomyces pombe)
- Potassium ion (39 Da, Ligand)
- Pre-mrna-splicing factor syf2 (28 kDa, Protein from Schizosaccharomyces pombe)
- U2snrna (59 kDa, RNA from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf5 (39 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf21 (34 kDa, Protein from Schizosaccharomyces pombe)
- Magnesium ion (24 Da, Ligand)
- Pre-mrna-splicing factor cwf2 (44 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf7 (21 kDa, Protein from Schizosaccharomyces pombe)
- Unk1 (1 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor spp42 (274 kDa, Protein from Schizosaccharomyces pombe)
- Peptidyl-prolyl cis-trans isomerase ppi1 (16 kDa, Protein from Schizosaccharomyces pombe)
- U5snrna (38 kDa, RNA from Schizosaccharomyces pombe)
- Bd-i complex (Complex from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf14 (17 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf10 (111 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf3 (92 kDa, Protein from Schizosaccharomyces pombe)
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf17 (37 kDa, Protein from Schizosaccharomyces pombe)
- Uncharacterized protein c20h4.06c (60 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-processing factor 19 (54 kDa, Protein from Schizosaccharomyces pombe)
- U6snrna (31 kDa, RNA from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf15 (30 kDa, Protein from Schizosaccharomyces pombe)
- Zinc ion (65 Da, Ligand)
- Pre-mrna-splicing factor cwf4 (80 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf22 (102 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor prp5 (52 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cdc5 (86 kDa, Protein from Schizosaccharomyces pombe)
- Small nuclear ribonucleoprotein e (9 kDa, Protein from Schizosaccharomyces pombe)
- G-patch domain-containing protein c1486.03 (91 kDa, Protein from Schizosaccharomyces pombe)
- Unk2 (29 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna (9 kDa, RNA from Schizosaccharomyces pombe)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Schizosaccharomyces pombe)
- Small nuclear ribonucleoprotein f (8 kDa, Protein from Schizosaccharomyces pombe)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-processing factor 17 (63 kDa, Protein from Schizosaccharomyces pombe)
- Inositol hexakisphosphate (660 Da, Ligand)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Schizosaccharomyces pombe)
- Putative pre-mrna-splicing factor atp-dependent rna helicase c20h4.09 (73 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-processing protein 45 (62 kDa, Protein from Schizosaccharomyces pombe)
- Guanosine-5'-triphosphate (523 Da, Ligand)
- Small nuclear ribonucleoprotein-associated protein b (15 kDa, Protein from Schizosaccharomyces pombe)
Structure of a B-state intermediate committed to discard (Bd-II state)
Resolution: 3.1 Å
EM Method: Single-particle
Fitted PDBs: 9esi
Q-score: 0.364
Soni K, Horvath A, Dybkov O, Schwan M, Trakansuebkul S, Flemming D, Wild K, Urlaub H, Fischer T, Sinning I
Nat Struct Mol Biol (2025) [ Pubmed: 39833470 DOI: doi:10.1038/s41594-024-01480-7 ]
- Pre-mrna-splicing factor cwf11 (148 kDa, Protein from Schizosaccharomyces pombe)
- Potassium ion (39 Da, Ligand)
- Pre-mrna-splicing factor syf2 (28 kDa, Protein from Schizosaccharomyces pombe)
- U2snrna (59 kDa, RNA from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf5 (39 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf21 (34 kDa, Protein from Schizosaccharomyces pombe)
- Magnesium ion (24 Da, Ligand)
- Protein saf4 (34 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf2 (44 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf7 (21 kDa, Protein from Schizosaccharomyces pombe)
- Stress response protein bis1 (43 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor spp42 (274 kDa, Protein from Schizosaccharomyces pombe)
- Unk1 (29 kDa, Protein from Schizosaccharomyces pombe)
- Peptidyl-prolyl cis-trans isomerase ppi1 (16 kDa, Protein from Schizosaccharomyces pombe)
- U5snrna (38 kDa, RNA from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf14 (17 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf10 (111 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf3 (92 kDa, Protein from Schizosaccharomyces pombe)
- Small nuclear ribonucleoprotein sm d3 (11 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf17 (37 kDa, Protein from Schizosaccharomyces pombe)
- Uncharacterized protein c20h4.06c (60 kDa, Protein from Schizosaccharomyces pombe)
- Uncharacterized protein c17a2.08c (41 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-processing factor 19 (54 kDa, Protein from Schizosaccharomyces pombe)
- U6snrna (31 kDa, RNA from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf15 (30 kDa, Protein from Schizosaccharomyces pombe)
- Unk3 (1 kDa, Protein from Schizosaccharomyces pombe)
- Zinc ion (65 Da, Ligand)
- Bd-ii complex (Complex from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf4 (80 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cwf22 (102 kDa, Protein from Schizosaccharomyces pombe)
- Unk2 (4 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor prp5 (52 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-splicing factor cdc5 (86 kDa, Protein from Schizosaccharomyces pombe)
- Small nuclear ribonucleoprotein e (9 kDa, Protein from Schizosaccharomyces pombe)
- G-patch domain-containing protein c1486.03 (91 kDa, Protein from Schizosaccharomyces pombe)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Schizosaccharomyces pombe)
- Small nuclear ribonucleoprotein f (8 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-processing factor 17 (63 kDa, Protein from Schizosaccharomyces pombe)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna (9 kDa, RNA from Schizosaccharomyces pombe)
- Inositol hexakisphosphate (660 Da, Ligand)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Schizosaccharomyces pombe)
- Putative pre-mrna-splicing factor atp-dependent rna helicase c20h4.09 (73 kDa, Protein from Schizosaccharomyces pombe)
- Pre-mrna-processing protein 45 (62 kDa, Protein from Schizosaccharomyces pombe)
- Guanosine-5'-triphosphate (523 Da, Ligand)
- Small nuclear ribonucleoprotein-associated protein b (15 kDa, Protein from Schizosaccharomyces pombe)
Cryo-EM structure of the cross-exon pre-B complex
Resolution: 9.6 Å
EM Method: Single-particle
Fitted PDBs: 8qxd
Q-score: 0.096
Zhang Z, Kumar V, Dybkov O, Will CL, Zhong J, Ludwig SEJ, Urlaub H, Kastner B, Stark H, Luhrmann R
Nature (2024) 630 pp. 1012-1019 [ DOI: doi:10.1038/s41586-024-07458-1 Pubmed: 38778104 ]
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- U5 snrna (36 kDa, RNA from Homo sapiens)
- Ubiquitin carboxyl-terminal hydrolase 39 (65 kDa, Protein from Homo sapiens)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 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)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (9 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1, n-terminally processed (14 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 1 (146 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp3 (77 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (9 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (9 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Rna-binding protein 42 (50 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- U6 snrna (24 kDa, RNA from Homo sapiens)
- Pre-mrna (4 kDa, RNA from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 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)
- Serine/threonine-protein kinase prp4 homolog (117 kDa, Protein from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- Cross-exon pre-b complex (Complex from Homo sapiens)
- U2 snrna (58 kDa, RNA from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)
- U4/u6.u5 small nuclear ribonucleoprotein 27 kda protein (18 kDa, Protein from Homo sapiens)
Cryo-EM structure of the cross-exon B-like complex
Resolution: 4.1 Å
EM Method: Single-particle
Fitted PDBs: 8qzs
Q-score: 0.168
Zhang Z, Kumar V, Dybkov O, Will CL, Zhong J, Ludwig SEJ, Urlaub H, Kastner B, Stark H, Luhrmann R
Nature (2024) 630 pp. 1012-1019 [ DOI: doi:10.1038/s41586-024-07458-1 Pubmed: 38778104 ]
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Ubiquitin carboxyl-terminal hydrolase 39 (65 kDa, Protein from Homo sapiens)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 3 (135 kDa, Protein from Homo sapiens)
- Wd40 repeat-containing protein smu1 (57 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- U2 snrna (60 kDa, RNA from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp4 (58 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1, n-terminally processed (14 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- Protein red (65 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 1 (146 kDa, Protein from Homo sapiens)
- Ww domain-binding protein 4 (42 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)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Zinc finger matrin-type protein 2 (23 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Microfibrillar-associated protein 1 (52 kDa, Protein from Homo sapiens)
- Oligo 1 (3 kDa, RNA from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- Pre-mrna (4 kDa, RNA from Homo sapiens)
- Pre-mrna-splicing factor 38a (37 kDa, Protein from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- Human spliceosomal cross-exon b-like complex (Complex from Homo sapiens)
- U5 small nuclear ribonucleoprotein 200 kda helicase (244 kDa, Protein from Homo sapiens)
- Peptidyl-prolyl cis-trans isomerase h (19 kDa, Protein from Homo sapiens)
- U6 snrna (34 kDa, RNA from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)
- Oligo 2 (1 kDa, RNA from Homo sapiens)
Cryo-EM structure of the cross-exon pre-B+AMPPNP complex
Resolution: 6.1 Å
EM Method: Single-particle
Fitted PDBs: 8r08
Q-score: 0.133
Zhang Z, Kumar V, Dybkov O, Will CL, Zhong J, Ludwig SEJ, Urlaub H, Kastner B, Stark H, Luhrmann R
Nature (2024) 630 pp. 1012-1019 [ DOI: doi:10.1038/s41586-024-07458-1 Pubmed: 38778104 ]
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Ubiquitin carboxyl-terminal hydrolase 39 (65 kDa, Protein from Homo sapiens)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 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)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1, n-terminally processed (14 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 1 (146 kDa, Protein from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp3 (77 kDa, Protein from Homo sapiens)
- Human spliceosomal pre-b+amppnp complex (Complex from Homo sapiens)
- U5 snrna (37 kDa, RNA from Homo sapiens)
- Oligo 1 (1 kDa, RNA from Homo sapiens)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Rna-binding protein 42 (50 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- Pre-mrna (4 kDa, RNA from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 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)
- Serine/threonine-protein kinase prp4 homolog (117 kDa, Protein from Homo sapiens)
- U6 snrna (34 kDa, RNA from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U2 snrna (60 kDa, RNA from Homo sapiens)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- U1 small nuclear ribonucleoprotein 70 kda (51 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)
- U4/u6.u5 small nuclear ribonucleoprotein 27 kda protein (18 kDa, Protein from Homo sapiens)
- U1 snrna (52 kDa, RNA from Homo sapiens)
Cryo-EM structure of the cross-exon pre-B+5'ss+ATPgammaS complex
Resolution: 4.3 Å
EM Method: Single-particle
Fitted PDBs: 8r09
Q-score: 0.161
Zhang Z, Kumar V, Dybkov O, Will CL, Zhong J, Ludwig SEJ, Urlaub H, Kastner B, Stark H, Luhrmann R
Nature (2024) 630 pp. 1012-1019 [ DOI: doi:10.1038/s41586-024-07458-1 Pubmed: 38778104 ]
- 5'ss oligo (3 kDa, RNA from Homo sapiens)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Ubiquitin carboxyl-terminal hydrolase 39 (65 kDa, Protein from Homo sapiens)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 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)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1, n-terminally processed (14 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 1 (146 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)
- Pre-mrna (111 kDa, RNA from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 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)
- Peptidyl-prolyl cis-trans isomerase h (19 kDa, Protein from Homo sapiens)
- U6 snrna (34 kDa, RNA from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U2 snrna (60 kDa, RNA from Homo sapiens)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- Human spliceosomal pre-b+5'ss+atpys complex (Complex from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)
Cryo-EM structure of the cross-exon pre-B+5'ss complex
Resolution: 5.8 Å
EM Method: Single-particle
Fitted PDBs: 8r0a
Q-score: 0.102
Zhang Z, Kumar V, Dybkov O, Will CL, Zhong J, Ludwig SEJ, Urlaub H, Kastner B, Stark H, Luhrmann R
Nature (2024) 630 pp. 1012-1019 [ DOI: doi:10.1038/s41586-024-07458-1 Pubmed: 38778104 ]
- 5'ss oligo (3 kDa, RNA from Homo sapiens)
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Ubiquitin carboxyl-terminal hydrolase 39 (65 kDa, Protein from Homo sapiens)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 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)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1, n-terminally processed (14 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 1 (146 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)
- Pre-mrna (111 kDa, RNA from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- Rna-binding protein 42 (50 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 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)
- Serine/threonine-protein kinase prp4 homolog (117 kDa, Protein from Homo sapiens)
- U6 snrna (34 kDa, RNA from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U2 snrna (60 kDa, RNA from Homo sapiens)
- Human spliceosomal pre-b+5'ss complex (Complex from Homo sapiens)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)
- U4/u6.u5 small nuclear ribonucleoprotein 27 kda protein (18 kDa, Protein from Homo sapiens)
Cryo-EM structure of the cross-exon pre-B+ATP complex
Resolution: 4.4 Å
EM Method: Single-particle
Fitted PDBs: 8r0b
Q-score: 0.148
Zhang Z, Kumar V, Dybkov O, Will CL, Zhong J, Ludwig SEJ, Urlaub H, Kastner B, Stark H, Luhrmann R
Nature (2024) 630 pp. 1012-1019 [ DOI: doi:10.1038/s41586-024-07458-1 Pubmed: 38778104 ]
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Ubiquitin carboxyl-terminal hydrolase 39 (65 kDa, Protein from Homo sapiens)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 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)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1, n-terminally processed (14 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- 5'ss oligo (4 kDa, RNA from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 1 (146 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)
- Pre-mrna (111 kDa, RNA from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 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)
- Peptidyl-prolyl cis-trans isomerase h (19 kDa, Protein from Homo sapiens)
- U6 snrna (34 kDa, RNA from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U2 snrna (60 kDa, RNA from Homo sapiens)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)
- Human spliceosomal pre-b+atp complex (Complex from Homo sapiens)
Cryo-EM structure of the cross-exon pre-B+5'ssLNG+ATPyS complex
Resolution: 6.9 Å
EM Method: Single-particle
Fitted PDBs: 8rm5
Q-score: 0.109
Zhang Z, Kumar V, Dybkov O, Will CL, Zhong J, Ludwig SEJ, Urlaub H, Kastner B, Stark H, Luhrmann R
Nature (2024) 630 pp. 1012-1019 [ DOI: doi:10.1038/s41586-024-07458-1 Pubmed: 38778104 ]
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Ubiquitin carboxyl-terminal hydrolase 39 (65 kDa, Protein from Homo sapiens)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 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)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1, n-terminally processed (14 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 1 (146 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)
- 5'ss oligo (5 kDa, RNA from Homo sapiens)
- Pre-mrna (111 kDa, RNA from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- Probable atp-dependent rna helicase ddx23 (95 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 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)
- Peptidyl-prolyl cis-trans isomerase h (19 kDa, Protein from Homo sapiens)
- U6 snrna (34 kDa, RNA from Homo sapiens)
- Human spliceosomal pre-b+5'sslng+atpys complex (Complex from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U2 snrna (60 kDa, RNA from Homo sapiens)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)
Cryo-EM structure of a human spliceosomal B complex protomer
Resolution: 5.29 Å
EM Method: Single-particle
Fitted PDBs: 8qo9
Q-score: 0.158
Zhang Z, Kumar V, Dybkov O, Will CL, Urlaub H, Stark H, Luhrmann R
EMBO J (2024) 43 pp. 1065-1088 [ Pubmed: 38383864 DOI: doi:10.1038/s44318-024-00052-1 ]
- Small nuclear ribonucleoprotein sm d2 (13 kDa, Protein from Homo sapiens)
- Protein bud31 homolog (17 kDa, Protein from Homo sapiens)
- U4 snrna (46 kDa, RNA from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp31 (55 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 3 (135 kDa, Protein from Homo sapiens)
- Wd40 repeat-containing protein smu1 (57 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 4 (44 kDa, Protein from Homo sapiens)
- U2 snrna (60 kDa, RNA from Homo sapiens)
- U4/u6 small nuclear ribonucleoprotein prp4 (58 kDa, Protein from Homo sapiens)
- Transcription elongation regulator 1 (124 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein b'' (25 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein e (10 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein-associated proteins b and b' (24 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 6 (14 kDa, Protein from Homo sapiens)
- Thioredoxin-like protein 4a (16 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm3 (11 kDa, Protein from Homo sapiens)
- Nhp2-like protein 1, n-terminally processed (14 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm6 (9 kDa, Protein from Homo sapiens)
- Pre-mrna-processing factor 6 (107 kDa, Protein from Homo sapiens)
- Human spliceosomal b complex (Complex from Homo sapiens)
- Small nuclear ribonucleoprotein g (8 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d1 (13 kDa, Protein from Homo sapiens)
- Protein red (65 kDa, Protein from Homo sapiens)
- Minx pre-mrna (111 kDa, RNA from Homo sapiens)
- U6 snrna-associated sm-like protein lsm7 (11 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein sm d3 (13 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm4 (15 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm5 (9 kDa, Protein from Homo sapiens)
- 116 kda u5 small nuclear ribonucleoprotein component (109 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 1 (146 kDa, Protein from Homo sapiens)
- Ww domain-binding protein 4 (42 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)
- Splicing factor 3b subunit 5 (10 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 2 (49 kDa, Protein from Homo sapiens)
- Zinc finger matrin-type protein 2 (23 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm8 (10 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 40 kda protein (39 kDa, Protein from Homo sapiens)
- Microfibrillar-associated protein 1 (52 kDa, Protein from Homo sapiens)
- Ubiquitin-like protein 5 (8 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 3 (58 kDa, Protein from Homo sapiens)
- Splicing factor 3b subunit 2 (100 kDa, Protein from Homo sapiens)
- U4/u6.u5 tri-snrnp-associated protein 1 (90 kDa, Protein from Homo sapiens)
- Pre-mrna-processing-splicing factor 8 (273 kDa, Protein from Homo sapiens)
- Pre-mrna-splicing factor 38a (37 kDa, Protein from Homo sapiens)
- Splicing factor 3a subunit 1 (88 kDa, Protein from Homo sapiens)
- Small nuclear ribonucleoprotein f (9 kDa, Protein from Homo sapiens)
- Serine/arginine-rich splicing factor 1 (27 kDa, Protein from Homo sapiens)
- U5 small nuclear ribonucleoprotein 200 kda helicase (244 kDa, Protein from Homo sapiens)
- Peptidyl-prolyl cis-trans isomerase h (19 kDa, Protein from Homo sapiens)
- U6 snrna (34 kDa, RNA from Homo sapiens)
- Phd finger-like domain-containing protein 5a (12 kDa, Protein from Homo sapiens)
- U2 small nuclear ribonucleoprotein a' (28 kDa, Protein from Homo sapiens)
- U6 snrna-associated sm-like protein lsm2 (10 kDa, Protein from Homo sapiens)