The RNA tether from the poly(A) signal to the polymerase mediates coupling of transcription to cleavage and polyadenylation
- PMID: 16337597
- DOI: 10.1016/j.molcel.2005.09.026
The RNA tether from the poly(A) signal to the polymerase mediates coupling of transcription to cleavage and polyadenylation
Abstract
We have investigated the mechanism by which transcription accelerates cleavage and polyadenylation in vitro. By using a coupled transcription-processing system, we show that rapid and efficient 3' end processing occurs in the absence of crowding agents like polyvinyl alcohol. The continuity of the RNA from the poly(A) signal down to the polymerase is critical to this processing. If this tether is cut with DNA oligonucleotides and RNaseH during transcription, the efficiency of processing is drastically reduced. The polymerase is known to be an integral part of the cleavage and polyadenylation apparatus. RNA polymerase II pull-down and immobilized template experiments suggest that the role of the tether is to hold the poly(A) signal close to the polymerase during the early stages of processing complex assembly until the complex is sufficiently mature to remain stably associated with the polymerase on its own.
Similar articles
-
RNA polymerase II is an essential mRNA polyadenylation factor.Nature. 1998 Sep 3;395(6697):93-6. doi: 10.1038/25786. Nature. 1998. PMID: 9738505
-
The poly(A)-dependent transcriptional pause is mediated by CPSF acting on the body of the polymerase.Nat Struct Mol Biol. 2007 Jul;14(7):662-9. doi: 10.1038/nsmb1253. Epub 2007 Jun 17. Nat Struct Mol Biol. 2007. PMID: 17572685
-
mRNA polyadenylation and its coupling to other RNA processing reactions and to transcription.Curr Opin Cell Biol. 1999 Jun;11(3):352-7. doi: 10.1016/S0955-0674(99)80049-0. Curr Opin Cell Biol. 1999. PMID: 10395555 Review.
-
Coupling of transcription termination to RNAi.J Theor Biol. 2007 Mar 21;245(2):278-89. doi: 10.1016/j.jtbi.2006.10.026. Epub 2006 Oct 29. J Theor Biol. 2007. PMID: 17157879
-
Single-molecule analysis of RNA polymerase transcription.Annu Rev Biophys Biomol Struct. 2006;35:343-60. doi: 10.1146/annurev.biophys.35.010406.150153. Annu Rev Biophys Biomol Struct. 2006. PMID: 16689640 Review.
Cited by
-
Cleavage and polyadenylation: Ending the message expands gene regulation.RNA Biol. 2017 Jul 3;14(7):865-890. doi: 10.1080/15476286.2017.1306171. Epub 2017 Apr 28. RNA Biol. 2017. PMID: 28453393 Free PMC article.
-
Functional coupling of RNAP II transcription to spliceosome assembly.Genes Dev. 2006 May 1;20(9):1100-9. doi: 10.1101/gad.1397406. Genes Dev. 2006. PMID: 16651655 Free PMC article.
-
RNA polymerase II pauses and associates with pre-mRNA processing factors at both ends of genes.Nat Struct Mol Biol. 2008 Jan;15(1):71-8. doi: 10.1038/nsmb1352. Epub 2007 Dec 23. Nat Struct Mol Biol. 2008. PMID: 18157150 Free PMC article.
-
Cotranscriptional splicing efficiency differs dramatically between Drosophila and mouse.RNA. 2012 Dec;18(12):2174-86. doi: 10.1261/rna.034090.112. Epub 2012 Oct 24. RNA. 2012. PMID: 23097425 Free PMC article.
-
Primary microRNA processing is functionally coupled to RNAP II transcription in vitro.Sci Rep. 2015 Jul 7;5:11992. doi: 10.1038/srep11992. Sci Rep. 2015. PMID: 26149087 Free PMC article.
Publication types
MeSH terms
Substances
Grants and funding
LinkOut - more resources
Full Text Sources