Entry
Name
Spliceosome - Nomascus leucogenys (northern white-cheeked gibbon)
Description
After transcription, eukaryotic mRNA precursors contain protein-coding exons and noncoding introns. In the following splicing, introns are excised and exons are joined by a macromolecular complex, the spliceosome. The standard spliceosome is made up of five small nuclear ribonucleoproteins (snRNPs), U1, U2, U4, U5, and U6 snRNPs, and several spliceosome-associated proteins (SAPs). Spliceosomes are not a simple stable complex, but a dynamic family of particles that assemble on the mRNA precursor and help fold it into a conformation that allows transesterification to proceed. Various spliceosome forms (e.g. A-, B- and C-complexes) have been identified.
Class
Genetic Information Processing; Transcription
BRITE hierarchy
Pathway map
Ortholog table
Other DBs
Organism
Nomascus leucogenys (northern white-cheeked gibbon) [GN:
nle ]
Gene
100596672 DHX16; pre-mRNA-splicing factor ATP-dependent RNA helicase DHX16 isoform X1 [KO:K12813 ] [EC:5.6.2.6 ]
100579235 DHX38; pre-mRNA-splicing factor ATP-dependent RNA helicase PRP16 isoform X1 [KO:K12815 ] [EC:5.6.2.6 ]
100591564 SNRPB; small nuclear ribonucleoprotein-associated proteins B and B' isoform X4 [KO:K11086 ]
100595176 SNRNP70; U1 small nuclear ribonucleoprotein 70 kDa isoform X1 [KO:K11093 ]
100598388 PRPF40A; pre-mRNA-processing factor 40 homolog A isoform X2 [KO:K12821 ]
100582970 PRPF40B; pre-mRNA-processing factor 40 homolog B isoform X1 [KO:K12821 ]
100583166 TCERG1; transcription elongation regulator 1 isoform X4 [KO:K12824 ]
115834173 LOW QUALITY PROTEIN: splicing factor 3A subunit 2-like [KO:K12826 ]
100591091 PHF5A; PHD finger-like domain-containing protein 5A isoform X1 [KO:K12834 ]
100598318 U2AF1; splicing factor U2AF 35 kDa subunit isoform X1 [KO:K12836 ]
100579477 U2AF1L4; splicing factor U2AF 26 kDa subunit isoform X1 [KO:K12836 ]
100591378 U2AF2; splicing factor U2AF 65 kDa subunit isoform X1 [KO:K12837 ]
100601715 PUF60; poly(U)-binding-splicing factor PUF60 isoform X9 [KO:K12838 ]
100582421 SMNDC1; survival of motor neuron-related-splicing factor 30 isoform X1 [KO:K12839 ]
100587561 CHERP; calcium homeostasis endoplasmic reticulum protein [KO:K12841 ]
100601047 U2SURP; U2 snRNP-associated SURP motif-containing protein isoform X1 [KO:K12842 ]
100594047 LSM2; U6 snRNA-associated Sm-like protein LSm2 isoform X1 [KO:K12621 ]
100589617 LSM3; U6 snRNA-associated Sm-like protein LSm3 isoform X4 [KO:K12622 ]
100579279 LSM5; U6 snRNA-associated Sm-like protein LSm5 isoform X1 [KO:K12624 ]
100595577 PRPF3; U4/U6 small nuclear ribonucleoprotein Prp3 isoform X1 [KO:K12843 ]
100589951 PRPF4; U4/U6 small nuclear ribonucleoprotein Prp4 isoform X2 [KO:K12662 ]
100604738 PRPF31; U4/U6 small nuclear ribonucleoprotein Prp31 isoform X1 [KO:K12844 ]
100604202 SNRNP27; U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein [KO:K12846 ]
100580518 USP39; U4/U6.U5 tri-snRNP-associated protein 2 isoform X2 [KO:K12847 ]
100593383 SART1; U4/U6.U5 tri-snRNP-associated protein 1 isoform X1 [KO:K11984 ]
100606135 EFTUD2; 116 kDa U5 small nuclear ribonucleoprotein component isoform X1 [KO:K12852 ]
100607577 PRPF8; pre-mRNA-processing-splicing factor 8 isoform X1 [KO:K12856 ]
100583223 SNRNP40; U5 small nuclear ribonucleoprotein 40 kDa protein [KO:K12857 ]
100584440 CCDC12; coiled-coil domain-containing protein 12 isoform X1 [KO:K12871 ]
100594211 ACIN1; apoptotic chromatin condensation inducer in the nucleus isoform X1 [KO:K12875 ]
100588470 NCBP1; nuclear cap-binding protein subunit 1 isoform X1 [KO:K12882 ]
100601582 NCBP2; nuclear cap-binding protein subunit 2 isoform X1 [KO:K12883 ]
101177069 LOW QUALITY PROTEIN: heterogeneous nuclear ribonucleoprotein A1-like [KO:K12741 ]
100591795 HNRNPA3; heterogeneous nuclear ribonucleoprotein A3 isoform X1 [KO:K12741 ]
115835046 LOW QUALITY PROTEIN: heterogeneous nuclear ribonucleoprotein A1-like [KO:K12741 ]
101179278 heterogeneous nuclear ribonucleoprotein A3-like isoform X1 [KO:K12741 ]
100606103 LOW QUALITY PROTEIN: heterogeneous nuclear ribonucleoprotein A1-like [KO:K12741 ]
100588244 HNRNPC; heterogeneous nuclear ribonucleoproteins C1/C2 isoform X3 [KO:K12884 ]
100601168 HNRNPK; heterogeneous nuclear ribonucleoprotein K isoform X1 [KO:K12886 ]
100590163 HNRNPM; heterogeneous nuclear ribonucleoprotein M isoform X1 [KO:K12887 ]
100607255 HNRNPU; heterogeneous nuclear ribonucleoprotein U isoform X1 [KO:K12888 ]
100604024 SRSF1; serine/arginine-rich splicing factor 1 isoform X1 [KO:K12890 ]
100602397 SRSF5; serine/arginine-rich splicing factor 5 isoform X1 [KO:K12893 ]
100597914 SRSF4; serine/arginine-rich splicing factor 4 isoform X1 [KO:K12893 ]
100587720 SRSF7; serine/arginine-rich splicing factor 7 isoform X1 [KO:K12896 ]
100603557 TRA2A; transformer-2 protein homolog alpha isoform X1 [KO:K12897 ]
100581587 SRSF10; serine/arginine-rich splicing factor 10 isoform X4 [KO:K12900 ]
Reference
Authors
Wahl MC, Will CL, Luhrmann R
Title
The spliceosome: design principles of a dynamic RNP machine.
Journal
Reference
Authors
Morris DP, Greenleaf AL
Title
The splicing factor, Prp40, binds the phosphorylated carboxyl-terminal domain of RNA polymerase II.
Journal
Reference
Authors
Chen YI, Moore RE, Ge HY, Young MK, Lee TD, Stevens SW
Title
Proteomic analysis of in vivo-assembled pre-mRNA splicing complexes expands the catalog of participating factors.
Journal
Reference
Authors
Ritchie DB, Schellenberg MJ, MacMillan AM
Title
Spliceosome structure: piece by piece.
Journal
KO pathway
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