6ahd

The Cryo-EM Structure of Human Pre-catalytic Spliceosome (B complex) at 3.8 angstrom resolution

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Pre-mRNA-processing-splicing factor 8

OrganismNot specified

UniProt Q6P2Q9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PRP8_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–2335; UniProt 1–2335

Thioredoxin-like protein 4A

OrganismNot specified

UniProt P83876

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name TXN4A_HUMAN
Isoform —
PDB entities 6
Chains and sequence ranges Author chain O; PDBConstruct 1–142; UniProt 1–142

116 kDa U5 small nuclear ribonucleoprotein component

OrganismNot specified

UniProt Q15029

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name U5S1_HUMAN
Isoform —
PDB entities 7
Chains and sequence ranges Author chain C; PDBConstruct 1–972; UniProt 1–972

Pre-mRNA-processing factor 6

OrganismNot specified

UniProt O94906

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PRP6_HUMAN
Isoform —
PDB entities 8
Chains and sequence ranges Author chain N; PDBConstruct 1–941; UniProt 1–941

NHP2-like protein 1

OrganismNot specified

UniProt P55769

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name NH2L1_HUMAN
Isoform —
PDB entities 9
Chains and sequence ranges Author chain M; PDBConstruct 1–128; UniProt 1–128

U4/U6 small nuclear ribonucleoprotein Prp31

OrganismNot specified

UniProt Q8WWY3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PRP31_HUMAN
Isoform —
PDB entities 10
Chains and sequence ranges Author chain L; PDBConstruct 1–499; UniProt 1–499

U4/U6.U5 tri-snRNP-associated protein 1

OrganismNot specified

UniProt O43290

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SNUT1_HUMAN
Isoform —
PDB entities 11
Chains and sequence ranges Author chain 9; PDBConstruct 1–800; UniProt 1–800

U4/U6 small nuclear ribonucleoprotein Prp3

OrganismNot specified

UniProt O43395

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PRPF3_HUMAN
Isoform —
PDB entities 12
Chains and sequence ranges Author chain J; PDBConstruct 1–683; UniProt 1–683

Small nuclear ribonucleoprotein Sm D1

OrganismNot specified

UniProt P62314

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SMD1_HUMAN
Isoform —
PDB entities 14
Chains and sequence ranges Author chain V; PDBConstruct 1–119; UniProt 1–119 Author chain b; PDBConstruct 1–119; UniProt 1–119 Author chain j; PDBConstruct 1–119; UniProt 1–119

Small nuclear ribonucleoprotein Sm D2

OrganismNot specified

UniProt P62316

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SMD2_HUMAN
Isoform —
PDB entities 15
Chains and sequence ranges Author chain P; PDBConstruct 1–118; UniProt 1–118 Author chain c; PDBConstruct 1–118; UniProt 1–118 Author chain k; PDBConstruct 1–118; UniProt 1–118

Small nuclear ribonucleoprotein G

OrganismNot specified

UniProt P62308

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RUXG_HUMAN
Isoform —
PDB entities 18
Chains and sequence ranges Author chain S; PDBConstruct 1–76; UniProt 1–76 Author chain f; PDBConstruct 1–76; UniProt 1–76 Author chain n; PDBConstruct 1–76; UniProt 1–76

Small nuclear ribonucleoprotein Sm D3

OrganismNot specified

UniProt P62318

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SMD3_HUMAN
Isoform —
PDB entities 19
Chains and sequence ranges Author chain T; PDBConstruct 1–126; UniProt 1–126 Author chain g; PDBConstruct 1–126; UniProt 1–126 Author chain h; PDBConstruct 1–126; UniProt 1–126

U5 small nuclear ribonucleoprotein 40 kDa protein

OrganismNot specified

UniProt Q96DI7

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SNR40_HUMAN
Isoform —
PDB entities 20
Chains and sequence ranges Author chain E; PDBConstruct 1–357; UniProt 1–357

WW domain-binding protein 4

OrganismNot specified

UniProt O75554

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name WBP4_HUMAN
Isoform —
PDB entities 21
Chains and sequence ranges Author chain X; PDBConstruct 1–376; UniProt 1–376

Peptidyl-prolyl cis-trans isomerase H

OrganismNot specified

UniProt O43447

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PPIH_HUMAN
Isoform —
PDB entities 22
Chains and sequence ranges Author chain W; PDBConstruct 1–177; UniProt 1–177

Ubiquitin-like protein 5

OrganismNot specified

UniProt Q9BZL1

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name UBL5_HUMAN
Isoform —
PDB entities 23
Chains and sequence ranges Author chain A0; PDBConstruct 1–73; UniProt 1–73

Microfibrillar-associated protein 1

OrganismNot specified

UniProt P55081

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name MFAP1_HUMAN
Isoform —
PDB entities 24
Chains and sequence ranges Author chain 0; PDBConstruct 1–439; UniProt 1–439

Pre-mRNA-splicing factor 38A

OrganismNot specified

UniProt Q8NAV1

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PR38A_HUMAN
Isoform —
PDB entities 25
Chains and sequence ranges Author chain Z; PDBConstruct 1–312; UniProt 1–312

Zinc finger matrin-type protein 2

OrganismNot specified

UniProt Q96NC0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name ZMAT2_HUMAN
Isoform —
PDB entities 26
Chains and sequence ranges Author chain 8; PDBConstruct 1–199; UniProt 1–199

WD40 repeat-containing protein SMU1

OrganismNot specified

UniProt Q2TAY7

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SMU1_HUMAN
Isoform —
PDB entities 27
Chains and sequence ranges Author chain Y; PDBConstruct 1–513; UniProt 1–513

;U2 small nuclear ribonucleoprotein A' ;

OrganismNot specified

UniProt P09661

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RU2A_HUMAN
Isoform —
PDB entities 29
Chains and sequence ranges Author chain o; PDBConstruct 1–255; UniProt 1–255

;U2 small nuclear ribonucleoprotein B'' ;

OrganismNot specified

UniProt P08579

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RU2B_HUMAN
Isoform —
PDB entities 30
Chains and sequence ranges Author chain p; PDBConstruct 1–225; UniProt 1–225

Splicing factor 3A subunit 1

OrganismNot specified

UniProt Q15459

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SF3A1_HUMAN
Isoform —
PDB entities 31
Chains and sequence ranges Author chain u; PDBConstruct 1–793; UniProt 1–793

Splicing factor 3A subunit 2

OrganismNot specified

UniProt Q15428

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SF3A2_HUMAN
Isoform —
PDB entities 32
Chains and sequence ranges Author chain v; PDBConstruct 1–464; UniProt 1–464

Splicing factor 3A subunit 3

OrganismNot specified

UniProt Q12874

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SF3A3_HUMAN
Isoform —
PDB entities 33
Chains and sequence ranges Author chain w; PDBConstruct 1–501; UniProt 1–501

U6 snRNA-associated Sm-like protein LSm2

OrganismNot specified

UniProt Q9Y333

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name LSM2_HUMAN
Isoform —
PDB entities 34
Chains and sequence ranges Author chain q; PDBConstruct 1–95; UniProt 1–95

U6 snRNA-associated Sm-like protein LSm3

OrganismNot specified

UniProt P62310

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name LSM3_HUMAN
Isoform —
PDB entities 35
Chains and sequence ranges Author chain r; PDBConstruct 1–102; UniProt 1–102

U6 snRNA-associated Sm-like protein LSm4

OrganismNot specified

UniProt Q9Y4Z0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name LSM4_HUMAN
Isoform —
PDB entities 36
Chains and sequence ranges Author chain s; PDBConstruct 1–139; UniProt 1–139

U6 snRNA-associated Sm-like protein LSm5

OrganismNot specified

UniProt Q9Y4Y9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name LSM5_HUMAN
Isoform —
PDB entities 37
Chains and sequence ranges Author chain t; PDBConstruct 1–91; UniProt 1–91

U6 snRNA-associated Sm-like protein LSm6

OrganismNot specified

UniProt P62312

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name LSM6_HUMAN
Isoform —
PDB entities 38
Chains and sequence ranges Author chain x; PDBConstruct 1–80; UniProt 1–80

U6 snRNA-associated Sm-like protein LSm7

OrganismNot specified

UniProt Q9UK45

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name LSM7_HUMAN
Isoform —
PDB entities 39
Chains and sequence ranges Author chain y; PDBConstruct 1–103; UniProt 1–103

U6 snRNA-associated Sm-like protein LSm8

OrganismNot specified

UniProt O95777

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name LSM8_HUMAN
Isoform —
PDB entities 40
Chains and sequence ranges Author chain z; PDBConstruct 1–96; UniProt 1–96

U4/U6 small nuclear ribonucleoprotein Prp4

OrganismNot specified

UniProt O43172

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PRP4_HUMAN
Isoform —
PDB entities 41
Chains and sequence ranges Author chain K; PDBConstruct 1–522; UniProt 1–522

Splicing factor 3B subunit 1

OrganismNot specified

UniProt O75533

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SF3B1_HUMAN
Isoform —
PDB entities 42
Chains and sequence ranges Author chain 1; PDBConstruct 1–1304; UniProt 1–1304

Splicing factor 3B subunit 3

OrganismNot specified

UniProt Q15393

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SF3B3_HUMAN
Isoform —
PDB entities 43
Chains and sequence ranges Author chain 3; PDBConstruct 1–1217; UniProt 1–1217

SF3b14a, Splicing factor 3B subunit 6

OrganismNot specified

UniProt Q9Y3B4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SF3B6_HUMAN
Isoform —
PDB entities 44
Chains and sequence ranges Author chain 5; PDBConstruct 1–125; UniProt 1–125

PHD finger-like domain-containing protein 5A

OrganismNot specified

UniProt Q7RTV0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PHF5A_HUMAN
Isoform —
PDB entities 45
Chains and sequence ranges Author chain 6; PDBConstruct 1–110; UniProt 1–110

SF3b5, Splicing factor 3B subunit 5

OrganismNot specified

UniProt Q9BWJ5

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SF3B5_HUMAN
Isoform —
PDB entities 46
Chains and sequence ranges Author chain 7; PDBConstruct 1–86; UniProt 1–86

SF3b145, Splicing factor 3B subunit 2

OrganismNot specified

UniProt Q13435

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SF3B2_HUMAN
Isoform —
PDB entities 47
Chains and sequence ranges Author chain 2; PDBConstruct 1–895; UniProt 1–895

SF3b49, Splicing factor 3B subunit 4

OrganismNot specified

UniProt Q15427

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase × 1 (O75643) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SF3B4_HUMAN
Isoform —
PDB entities 48
Chains and sequence ranges Author chain 4; PDBConstruct 1–424; UniProt 1–424

Brr2, U5 small nuclear ribonucleoprotein 200 kDa helicase

OrganismNot specified

UniProt O75643

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 58 RNA 5 Pre-mRNA-processing-splicing factor 8 × 1 (Q6P2Q9) U4snRNA × 1 U5snRNA × 1 U6snRNA × 1 pre-mRNA × 1 Thioredoxin-like protein 4A × 1 (P83876) 116 kDa U5 small nuclear ribonucleoprotein component × 1 (Q15029) Pre-mRNA-processing factor 6 × 1 (O94906) NHP2-like protein 1 × 1 (P55769) U4/U6 small nuclear ribonucleoprotein Prp31 × 1 (Q8WWY3) U4/U6.U5 tri-snRNP-associated protein 1 × 1 (O43290) U4/U6 small nuclear ribonucleoprotein Prp3 × 1 (O43395) SmB × 3 Small nuclear ribonucleoprotein Sm D1 × 3 (P62314) Small nuclear ribonucleoprotein Sm D2 × 3 (P62316) SmE × 3 SmF × 3 Small nuclear ribonucleoprotein G × 3 (P62308) Small nuclear ribonucleoprotein Sm D3 × 3 (P62318) U5 small nuclear ribonucleoprotein 40 kDa protein × 1 (Q96DI7) WW domain-binding protein 4 × 1 (O75554) Peptidyl-prolyl cis-trans isomerase H × 1 (O43447) Ubiquitin-like protein 5 × 1 (Q9BZL1) Microfibrillar-associated protein 1 × 1 (P55081) Pre-mRNA-splicing factor 38A × 1 (Q8NAV1) Zinc finger matrin-type protein 2 × 1 (Q96NC0) WD40 repeat-containing protein SMU1 × 1 (Q2TAY7) U2snRNA × 1 ;U2 small nuclear ribonucleoprotein A' ; × 1 (P09661) ;U2 small nuclear ribonucleoprotein B'' ; × 1 (P08579) Splicing factor 3A subunit 1 × 1 (Q15459) Splicing factor 3A subunit 2 × 1 (Q15428) Splicing factor 3A subunit 3 × 1 (Q12874) U6 snRNA-associated Sm-like protein LSm2 × 1 (Q9Y333) U6 snRNA-associated Sm-like protein LSm3 × 1 (P62310) U6 snRNA-associated Sm-like protein LSm4 × 1 (Q9Y4Z0) U6 snRNA-associated Sm-like protein LSm5 × 1 (Q9Y4Y9) U6 snRNA-associated Sm-like protein LSm6 × 1 (P62312) U6 snRNA-associated Sm-like protein LSm7 × 1 (Q9UK45) U6 snRNA-associated Sm-like protein LSm8 × 1 (O95777) U4/U6 small nuclear ribonucleoprotein Prp4 × 1 (O43172) Splicing factor 3B subunit 1 × 1 (O75533) Splicing factor 3B subunit 3 × 1 (Q15393) SF3b14a, Splicing factor 3B subunit 6 × 1 (Q9Y3B4) PHD finger-like domain-containing protein 5A × 1 (Q7RTV0) SF3b5, Splicing factor 3B subunit 5 × 1 (Q9BWJ5) SF3b145, Splicing factor 3B subunit 2 × 1 (Q13435) SF3b49, Splicing factor 3B subunit 4 × 1 (Q15427) INOSITOL HEXAKISPHOSPHATE × 1 GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name U520_HUMAN
Isoform —
PDB entities 49
Chains and sequence ranges Author chain D; PDBConstruct 1–2136; UniProt 1–2136

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id6ahd
Deposition date deposition_date2018-08-17
Structure title titleThe Cryo-EM Structure of Human Pre-catalytic Spliceosome (B complex) at 3.8 angstrom resolution
Keywords keywordsSpliceosome, SPLICING; SPLICING
Experimental Method methodELECTRON MICROSCOPY
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

6ahd__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

6ahd__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 1010 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

6ahd__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)0.00 Å
Rg (electron density)107.70 Å
Total Rg107.00 Å
Atom count85302
Residues14613
Excluded volume1330900 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 6ahd__assembly_1__model_1 63-meric (63) Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (52)

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7. Citations (1)