Entry
Name
Spliceosome - Poeciliopsis prolifica (blackstripe livebearer)
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
Other DBs
Organism
Poeciliopsis prolifica (blackstripe livebearer) [GN:
pprl ]
Gene
129352070 puf60b; poly(U)-binding-splicing factor PUF60-B isoform X1 [KO:K12838 ]
129353661 crnkl1; LOW QUALITY PROTEIN: crooked neck-like protein 1 [KO:K12869 ]
129354665 cherp; calcium homeostasis endoplasmic reticulum protein [KO:K12841 ]
129356017 snrpb2; LOW QUALITY PROTEIN: U2 small nuclear ribonucleoprotein B'' [KO:K11094 ]
129356193 prpf4; LOW QUALITY PROTEIN: U4/U6 small nuclear ribonucleoprotein Prp4 [KO:K12662 ]
129359234 srsf7a; serine and arginine rich splicing factor 7a isoform X1 [KO:K12896 ]
129359944 smndc1; survival of motor neuron-related-splicing factor 30 [KO:K12839 ]
129361708 acin1a; LOW QUALITY PROTEIN: apoptotic chromatin condensation inducer in the nucleus [KO:K12875 ]
129364500 u2surp; U2 snRNP-associated SURP motif-containing protein isoform X1 [KO:K12842 ]
129366498 snrpd3l; small nuclear ribonucleoprotein D3 polypeptide, like [KO:K11088 ]
129368248 srsf2a; serine and arginine rich splicing factor 2a isoform X1 [KO:K12891 ]
129368405 zgc:163098; U2 snRNP-associated SURP motif-containing protein isoform X1 [KO:K12842 ]
129369808 hspa8b; heat shock protein family A (Hsp70) member 8b [KO:K03283 ]
129369823 srsf1a; LOW QUALITY PROTEIN: serine/arginine-rich splicing factor 1A [KO:K12890 ]
129371382 u2af2a; U2 small nuclear RNA auxiliary factor 2a isoform X1 [KO:K12837 ]
129371549 prpf3; U4/U6 small nuclear ribonucleoprotein Prp3 isoform X1 [KO:K12843 ]
129372251 hnrnpa1b; heterogeneous nuclear ribonucleoprotein A1b [KO:K12741 ]
129372611 snrpc; U1 small nuclear ribonucleoprotein C isoform X1 [KO:K11095 ]
129372945 snrnp27; U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein [KO:K12846 ]
129373244 dhx15; pre-mRNA-splicing factor ATP-dependent RNA helicase DHX15 isoform X1 [KO:K12820 ] [EC:5.6.2.6 ]
129373613 tcerg1b; transcription elongation regulator 1 isoform X1 [KO:K12824 ]
129373688 eftud2; 116 kDa U5 small nuclear ribonucleoprotein component [KO:K12852 ]
129374343 hnrpkl; heterogeneous nuclear ribonucleoprotein K, like isoform X1 [KO:K12886 ]
129375035 snrnp40; U5 small nuclear ribonucleoprotein 40 kDa protein [KO:K12857 ]
129377195 lsm4; LOW QUALITY PROTEIN: U6 snRNA-associated Sm-like protein LSm4 [KO:K12623 ]
129378338 hnrnpc; heterogeneous nuclear ribonucleoproteins C1/C2 isoform X1 [KO:K12884 ]
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