Auswahl der wissenschaftlichen Literatur zum Thema „Intronic polyadenylation“
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Zeitschriftenartikel zum Thema "Intronic polyadenylation"
Tikhonov, M. V., P. G. Georgiev und O. G. Maksimenko. „Competition within Introns: Splicing Wins over Polyadenylation via a General Mechanism“. Acta Naturae 5, Nr. 4 (15.12.2013): 52–61. http://dx.doi.org/10.32607/20758251-2013-5-4-52-61.
Der volle Inhalt der QuelleWang, Xiuye, Liang Liu, Adam W. Whisnant, Thomas Hennig, Lara Djakovic, Nabila Haque, Cindy Bach et al. „Mechanism and consequences of herpes simplex virus 1-mediated regulation of host mRNA alternative polyadenylation“. PLOS Genetics 17, Nr. 3 (08.03.2021): e1009263. http://dx.doi.org/10.1371/journal.pgen.1009263.
Der volle Inhalt der QuelleLou, Hua, Karla M. Neugebauer, Robert F. Gagel und Susan M. Berget. „Regulation of Alternative Polyadenylation by U1 snRNPs and SRp20“. Molecular and Cellular Biology 18, Nr. 9 (01.09.1998): 4977–85. http://dx.doi.org/10.1128/mcb.18.9.4977.
Der volle Inhalt der QuelleSpraggon, Lee, und Luca Cartegni. „U1 snRNP-Dependent Suppression of Polyadenylation: Physiological Role and Therapeutic Opportunities in Cancer“. International Journal of Cell Biology 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/846510.
Der volle Inhalt der QuelleScholl, Amanda, Alexander Muselman und Dong-Er Zhang. „An Intronic Suppressor Element Regulates RUNX1 Alternative Polyadenylation“. Blood 126, Nr. 23 (03.12.2015): 3578. http://dx.doi.org/10.1182/blood.v126.23.3578.3578.
Der volle Inhalt der QuelleDuan, Cheng-Guo, Xingang Wang, Lingrui Zhang, Xiansong Xiong, Zhengjing Zhang, Kai Tang, Li Pan et al. „A protein complex regulates RNA processing of intronic heterochromatin-containing genes in Arabidopsis“. Proceedings of the National Academy of Sciences 114, Nr. 35 (14.08.2017): E7377—E7384. http://dx.doi.org/10.1073/pnas.1710683114.
Der volle Inhalt der QuelleWang, Ruijia, und Bin Tian. „APAlyzer: a bioinformatics package for analysis of alternative polyadenylation isoforms“. Bioinformatics 36, Nr. 12 (22.04.2020): 3907–9. http://dx.doi.org/10.1093/bioinformatics/btaa266.
Der volle Inhalt der QuelleLee, Shih-Han, Irtisha Singh, Sarah Tisdale, Omar Abdel-Wahab, Christina S. Leslie und Christine Mayr. „Widespread intronic polyadenylation inactivates tumour suppressor genes in leukaemia“. Nature 561, Nr. 7721 (27.08.2018): 127–31. http://dx.doi.org/10.1038/s41586-018-0465-8.
Der volle Inhalt der QuelleDubbury, Sara J., Paul L. Boutz und Phillip A. Sharp. „CDK12 regulates DNA repair genes by suppressing intronic polyadenylation“. Nature 564, Nr. 7734 (28.11.2018): 141–45. http://dx.doi.org/10.1038/s41586-018-0758-y.
Der volle Inhalt der QuelleWang, Hong-Wei. „A Link between Intronic Polyadenylation and HR Maintenance Discovered“. Biochemistry 58, Nr. 14 (28.03.2019): 1835–36. http://dx.doi.org/10.1021/acs.biochem.9b00202.
Der volle Inhalt der QuelleDissertationen zum Thema "Intronic polyadenylation"
Dubbury, Sara Jane. „Cdk12 regulates DNA repair Genes by suppressing intronic polyadenylation“. Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/115596.
Der volle Inhalt der QuelleThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis. Vita.
Includes bibliographical references.
During transcription, cyclin-dependent kinases (CDKs) dynamically phosphorylate the C-terminal domain (CTD) of RNA Polymerase II (RNAPII) to recruit factors that coordinate transcription and mRNA biogenesis. Cdk12 phosphorylates Serine 2 (Ser2) of the RNAPII CTD, a modification associated with the regulation of transcription elongation, splicing, and cleavage/polyadenylation. Unlike other transcriptional CDKs that regulate most expressed genes, Cdk12 depletion abrogates the expression of homologous recombination (HR) genes relatively specifically, suppressing the HR DNA damage repair pathway and sensitizing cells to genotoxic stresses that cause replication fork collapse, such as Parp1 inhibitors. The proposed role for Cdk12 in regulating HR is clinically significant for two reasons. First, Cdk12 loss-of-function mutations populate high-grade serous ovarian carcinoma and castration-resistant prostate tumors raising the possibility that Cdk12 mutational status may predict the effectiveness of chemotherapeutics that target HR-deficient tumors. Second, readily available small molecule inhibitors of Cdk12 induce sensitization of HR-competent tumors to Parp1 inhibitors in vivo raising the possibility that inhibitors against Cdk12 could be used as chemotherapeutics. Despite this growing clinical interest, the mechanism behind Cdk12's regulation of HR genes remains unknown. Here we show that Cdk12 suppresses intronic polyadenylation (IPA) and that this mechanism explains the exquisite sensitivity of HR genes to Cdk12 loss. We find that Cdk12 globally enhances transcription elongation rate to kinetically suppress IPA events. Many HR genes harbor multiple IPA sites per gene, and the cumulative effect of these sites accounts for the increased sensitivity of HR genes to Cdk12. Finally, we find evidence that Cdk12 LOF mutations and deletions cause upregulation of IPA sites in HR genes in human tumors. Our results define the mechanism by which Cdk12 regulates transcription, mRNA biogenesis, and the HR pathway. This work clarifies the biological function of CDK12 and underscores its potential both as a chemotherapeutic target and as a tumor biomarker.
by Sara Jane Dubbury.
Ph. D.
Devaux, Alexandre. „Rôle de la polyadénylation intronique dans la réponse des cellules cancéreuses au cisplatine“. Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASL015.
Der volle Inhalt der QuelleDuring studies on alternative polyadenylation (APA), short transcripts ending in an alternative last exon were discovered, known as intronic polyadenylation (IPA). IPA is regulated by splicing factors (including U1 snRNP), polyadenylation factors and transcription elongation factors (including CDK12). IPA isoforms are regulated by genotoxic agents (inducing DNA damage), including UV radiation and doxorubicin. Conversely, CDK12 inhibitors increase both IPA in DNA repair genes and cellular sensitivity to genotoxic agents. IPA often occurs in the coding region of genes, generating carboxy-terminally altered proteins. However, IPA transcripts are also generated in the first introns of genes, known as 5'IPA. Many 5'IPA transcripts are degraded by the nuclear exosome, but some are abundant and have a low coding potential. Two of these, derived from the ASCC3 and CDKN1A genes, have non-coding functions. In addition, studies using Ribo-seq and mass spectrometry (MS) are showing the existence -in mRNAs and lncRNAs- of small open reading frames (sORF) encoding microproteins (miP, proteins of less than 100 aa) which can be functional. No miP has been reported in 5'IPA isoforms. Cisplatin (CisPt) is a DNA-crosslinking agent widely used in non-small cell lung cancer (NSCLC). My team observed, by 3'-seq in NSCLC cells, that CisPt increases the expression of IPA isoforms compared to canonical mRNAs (IPA:LE ratio) in many genes, and that some IPA isoforms are poorly associated with heavy polysomes and are derived from the region upstream of the annotated translation initiation site of the gene (5'UTR-IPA isoforms). My objectives were to determine the role of IPA in cell response to CisPt. I first looked at the role of 5'UTR-IPA isoforms. For two of them, derived from the PRKAR1B and PHF20 genes, I showed that their depletion by siRNA increased the survival of NSCLC cells to CisPt. These two isoforms are associated with light polysomal fractions. Analyses of Ribo-seq and MS databases revealed the existence of sORFs in these two isoforms. By transfecting vectors containing these 5'UTR-IPA isoforms and by tagging their sORFs, I observed by ImmunoFluorescence (IF) and Western Blot that the 5'UTR-IPA isoform of PRKAR1B encodes a miP. Deletion of this IPA isoform or mutation of the sORF ATG endogenously by CRISPR gave a phenotype similar to the siRNAs. This is the first 5'UTR-IPA isoform encoding a miP (miP-5'UTR-IPA). By cross-referencing our 3'-seq data with Ribo-seq and MS data, we identified around a hundred potential miP-5'UTR-IPA isoforms induced by CisPt. Secondly, I investigated the possibility of sensitizing NSCLC cells to CisPt by targeting U1 snRNP with an antisense oligonucleotide (U1-AMO), that induces IPA in many genes. In several NSCLC cell lines, I showed sensitization to CisPt by U1-AMO in terms of cell growth inhibition and DNA damage induction (ƴH2AX foci). This sensitization is linked to a reduced expression of the canonical mRNAs of DNA crosslinks repair pathways (Fanconi and nucleotide excision repair), as shown by 3'-seq and RT-qPCR. However, U1-AMO prevented CisPt- induced cell cycle block and the effects of CisPt on the IPA:LE ratio of many genes. My work shows the impact of IPA on the response of cancer cells to CisPt, and reveals a new genetic paradigm, called miP-5'UTR-IPA, in which genes produce short miP-encoding transcripts by IPA
Idir, Yassir. „Epigenetic regulation of transcription from genes-containing heterochromatin“. Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS270.
Der volle Inhalt der QuelleRNA maturation implies numerous post-transcriptional modifications in whichpolyadenylation is a key step. In Arabidopsis, the heterochromatin found within introns(intronic-HC) can impact transcripts polyadenylation of host genes. INCREASED IN BONSAI METHYLATION2 (IBM2), an RNA-binding protein containing a bromo-adjacent homology (BAH) domain, interacts with intronic-HC to produce functional full-length transcripts by promoting distal polyadenylation. Loss of IBM2 function triggers short transcripts production due to premature polyadenylation from the heterochromatic region. During my thesis, I investigated the role of proteins that may belong to different sub-complexes in the regulation of intronic-HC containing genes. We identified IBM2 partners, including ENHANCED DOWNY MILDEW 2 (EDM2) and ASI-IMMUNOPRECIPITATED PROTEIN1 (AIPP1), and a novel partner that interacts directly with IBM2 and other proteins. Mutating the corresponding gene of the novel partner results in decreased expression of tested IBM2-targets such as IBM1 encoding an H3K9demethylase and the disease resistance gene RECOGNITION OF PERONOSPORA PARASITICA 7 (RPP7), accompanied with compromised use of their distal polyadenylation sites. By conducting a genetic screen of ibm2 mutation suppressors, we identified factors belonging to different pathways that act upstream of IBM2, among them the FLOWERING TIME CONTROL PROTEIN (FPA). FPA is an RNA-binding protein that promotes the use of proximal polyadenylation sitesof several genes such as IBM1. Our data bring evidence that antagonistic actions of FPA and IBM2 regulates polyadenylation sites choice at intronic-HC containing genes. These results provide new insights to understand the interplay between heterochromatin and RNA processing
Buchteile zum Thema "Intronic polyadenylation"
Rokeya, Begum, Mohammad Asrafuzzaman, Maliha Tabassum Rashid und Shaeri Nawar. „The Role of Introns for the Development of Inflammation-Mediated Cancer Cell“. In Inflammation [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96754.
Der volle Inhalt der QuelleMcafee, James g., mae huang, syrus soltaninassab, janee Rech, sunita iyengar, und wallace m. Lestourgeon. „The packaging of pre-Mrna“. In Eukaryotic mRNA Processing, 68–102. Oxford University PressOxford, 1997. http://dx.doi.org/10.1093/oso/9780199634187.003.0003.
Der volle Inhalt der Quellehuang, Sui, und david l. Spector. „Nuclear organization of pre¬ mRNA splicing factors and substrates“. In Eukaryotic mRNA Processing, 37–67. Oxford University PressOxford, 1997. http://dx.doi.org/10.1093/oso/9780199634187.003.0002.
Der volle Inhalt der QuelleSWANSON, MAURICE S., und JOHN P. ARIS. „Posttranscriptional Control: Nuclear RNA Processing“. In Inborn Errors Of Development, 1108–25. Oxford University PressNew York, NY, 2008. http://dx.doi.org/10.1093/oso/9780195306910.003.0125.
Der volle Inhalt der QuelleStuart, Kenneth D. „RNA editing in kinetoplastid mitochondria“. In RNA Editing, 1–19. Oxford University PressOxford, 2000. http://dx.doi.org/10.1093/oso/9780199638154.003.0001.
Der volle Inhalt der QuelleKonferenzberichte zum Thema "Intronic polyadenylation"
Wang, Xinyi, Jessika Carvajal-Moreno, Jack C. Yalowich und Terry Elton. „Strategies to Circumvent Topoisomerase IIα Intron 19 Intronic Polyadenylation (IPA) in Acquired Etoposide Resistance Human Leukemia K562 Cells“. In ASPET 2023 Annual Meeting Abstracts. American Society for Pharmacology and Experimental Therapeutics, 2023. http://dx.doi.org/10.1124/jpet.122.207410.
Der volle Inhalt der QuellePannekoek, H., M. Linders, J. Keijer, H. Veerman, H. Van Heerikhuizen und D. J. Loskutoff. „THE STRUCTURE OF THE HUMAN ENDOTHELIAL PLASMINOGEN ACTIVATOR INHIBITOR (PAI-1) GENE: NON-RANDOM POSITIONING OF INTRONS“. In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644767.
Der volle Inhalt der QuelleBerichte der Organisationen zum Thema "Intronic polyadenylation"
Schuster, Gadi, und David Stern. Integrated Studies of Chloroplast Ribonucleases. United States Department of Agriculture, September 2011. http://dx.doi.org/10.32747/2011.7697125.bard.
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