Entry
Name
Spliceosome - Eptesicus fuscus (big brown bat)
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
Eptesicus fuscus (big brown bat) [GN:
efus ]
Gene
129151093 PRPF18; LOW QUALITY PROTEIN: pre-mRNA-splicing factor 18 [KO:K12817 ]
103285612 SNRPB; small nuclear ribonucleoprotein-associated proteins B and B' isoform X1 [KO:K11086 ]
103303203 SNRPD1; small nuclear ribonucleoprotein Sm D1 isoform X1 [KO:K11087 ]
103303288 LOW QUALITY PROTEIN: small nuclear ribonucleoprotein Sm D2-like [KO:K11096 ]
103283406 PRPF40A; pre-mRNA-processing factor 40 homolog A isoform X7 [KO:K12821 ]
103285273 PRPF40B; pre-mRNA-processing factor 40 homolog B isoform X1 [KO:K12821 ]
129151866 LOW QUALITY PROTEIN: transcription elongation regulator 1-like [KO:K12824 ]
103289604 TCERG1; transcription elongation regulator 1 isoform X1 [KO:K12824 ]
129148335 SNRPA1; U2 small nuclear ribonucleoprotein A' isoform X1 [KO:K11092 ]
103289792 U2AF1; splicing factor U2AF 35 kDa subunit isoform X1 [KO:K12836 ]
129150527 LOW QUALITY PROTEIN: splicing factor U2AF 26 kDa subunit-like [KO:K12836 ]
103304200 U2AF2; splicing factor U2AF 65 kDa subunit isoform X3 [KO:K12837 ]
103297944 LOW QUALITY PROTEIN: splicing factor U2AF 65 kDa subunit-like [KO:K12837 ]
103302707 PUF60; poly(U)-binding-splicing factor PUF60 isoform X1 [KO:K12838 ]
103288554 SMNDC1; survival of motor neuron-related-splicing factor 30 isoform X1 [KO:K12839 ]
103300890 CHERP; calcium homeostasis endoplasmic reticulum protein isoform X2 [KO:K12841 ]
103304241 U2SURP; U2 snRNP-associated SURP motif-containing protein isoform X1 [KO:K12842 ]
103299546 LSM4; U6 snRNA-associated Sm-like protein LSm4 isoform X1 [KO:K12623 ]
103291421 LSM5; U6 snRNA-associated Sm-like protein LSm5 isoform X1 [KO:K12624 ]
103295933 LSM8; LSM8 homolog, U6 small nuclear RNA associated isoform X2 [KO:K12627 ]
103298966 PRPF3; U4/U6 small nuclear ribonucleoprotein Prp3 isoform X1 [KO:K12843 ]
103303922 PRPF4; U4/U6 small nuclear ribonucleoprotein Prp4 isoform X1 [KO:K12662 ]
103304725 U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein [KO:K12846 ]
103293218 EFTUD2; 116 kDa U5 small nuclear ribonucleoprotein component [KO:K12852 ]
103292046 SNRNP40; U5 small nuclear ribonucleoprotein 40 kDa protein isoform X1 [KO:K12857 ]
103304878 LOW QUALITY PROTEIN: heat shock cognate 71 kDa protein-like [KO:K03283 ]
103297281 LOW QUALITY PROTEIN: heat shock cognate 71 kDa protein-like [KO:K03283 ]
103287950 LOW QUALITY PROTEIN: pre-mRNA-splicing factor RBM22-like [KO:K12872 ]
103301518 ACIN1; apoptotic chromatin condensation inducer in the nucleus isoform X1 [KO:K12875 ]
103286407 NCBP1; nuclear cap-binding protein subunit 1 isoform X1 [KO:K12882 ]
103303538 NCBP2; nuclear cap-binding protein subunit 2 isoform X2 [KO:K12883 ]
103285366 HNRNPA1; heterogeneous nuclear ribonucleoprotein A1 isoform X1 [KO:K12741 ]
103283288 HNRNPA3; heterogeneous nuclear ribonucleoprotein A3 isoform X1 [KO:K12741 ]
103302763 HNRNPC; heterogeneous nuclear ribonucleoproteins C1/C2 isoform X1 [KO:K12884 ]
103302107 RBMX; RNA-binding motif protein, X chromosome isoform X2 [KO:K12885 ]
103286502 HNRNPK; heterogeneous nuclear ribonucleoprotein K isoform X1 [KO:K12886 ]
103295040 HNRNPM; heterogeneous nuclear ribonucleoprotein M isoform X6 [KO:K12887 ]
103299094 LOW QUALITY PROTEIN: heterogeneous nuclear ribonucleoprotein M-like [KO:K12887 ]
103291656 SRSF1; serine/arginine-rich splicing factor 1 isoform X3 [KO:K12890 ]
103283622 SRSF5; serine/arginine-rich splicing factor 5 isoform X1 [KO:K12893 ]
103291864 SRSF4; serine/arginine-rich splicing factor 4 isoform X2 [KO:K12893 ]
103305454 SRSF7; serine/arginine-rich splicing factor 7 isoform X1 [KO:K12896 ]
103291951 TRA2A; transformer-2 protein homolog alpha isoform X1 [KO:K12897 ]
103300072 LOW QUALITY PROTEIN: transformer-2 protein homolog beta-like [KO:K12897 ]
129147594 LOW QUALITY PROTEIN: transformer-2 protein homolog beta-like [KO:K12897 ]
103291946 SRSF10; serine/arginine-rich splicing factor 10 isoform X1 [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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