Academic literature on the topic 'DDX17'
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Journal articles on the topic "DDX17"
Nelson, Corey R., Tyler Mrozowich, Sean M. Park, Simmone D’souza, Amy Henrickson, Justin R. J. Vigar, Hans-Joachim Wieden, Raymond J. Owens, Borries Demeler, and Trushar R. Patel. "Human DDX17 Unwinds Rift Valley Fever Virus Non-Coding RNAs." International Journal of Molecular Sciences 22, no. 1 (December 23, 2020): 54. http://dx.doi.org/10.3390/ijms22010054.
Full textSamaan, Samaan, Léon-Charles Tranchevent, Etienne Dardenne, Micaela Polay Espinoza, Eleonora Zonta, Sophie Germann, Lise Gratadou, Martin Dutertre, and Didier Auboeuf. "The Ddx5 and Ddx17 RNA helicases are cornerstones in the complex regulatory array of steroid hormone-signaling pathways." Nucleic Acids Research 42, no. 4 (November 25, 2013): 2197–207. http://dx.doi.org/10.1093/nar/gkt1216.
Full textHirai, Yuya, Eisuke Domae, Yoshihiro Yoshikawa, and Keizo Tomonaga. "Differential roles of two DDX17 isoforms in the formation of membraneless organelles." Journal of Biochemistry 168, no. 1 (February 17, 2020): 33–40. http://dx.doi.org/10.1093/jb/mvaa023.
Full textMoy, Ryan H., and Sara Cherry. "DDX17: Structured RNA recognition drives diverse outputs." Cell Cycle 13, no. 22 (November 15, 2014): 3467–68. http://dx.doi.org/10.4161/15384101.2014.980695.
Full textLin, Qi, Jian Cai, and Qin-Quan Wang. "The Significance of Circular RNA DDX17 in Prostate Cancer." BioMed Research International 2020 (August 21, 2020): 1–16. http://dx.doi.org/10.1155/2020/1878431.
Full textNgo, Tri D., Alexander C. Partin, and Yunsun Nam. "RNA Specificity and Autoregulation of DDX17, a Modulator of MicroRNA Biogenesis." Cell Reports 29, no. 12 (December 2019): 4024–35. http://dx.doi.org/10.1016/j.celrep.2019.11.059.
Full textMoy, Ryan H., Brian S. Cole, Ari Yasunaga, Beth Gold, Ganesh Shankarling, Andrew Varble, Jerome M. Molleston, Benjamin R. tenOever, Kristen W. Lynch, and Sara Cherry. "Stem-Loop Recognition by DDX17 Facilitates miRNA Processing and Antiviral Defense." Cell 158, no. 4 (August 2014): 764–77. http://dx.doi.org/10.1016/j.cell.2014.06.023.
Full textSourabh, Suman, Manish Chauhan, Rahena Yasmin, Sadaf Shehzad, Dinesh Gupta, and Renu Tuteja. "Plasmodium falciparum DDX17 is an RNA helicase crucial for parasite development." Biochemistry and Biophysics Reports 26 (July 2021): 101000. http://dx.doi.org/10.1016/j.bbrep.2021.101000.
Full textUrbanek-Trzeciak, Martyna, Edyta Jaworska, and Wlodzimierz Krzyzosiak. "miRNAmotif—A Tool for the Prediction of Pre-miRNA–Protein Interactions." International Journal of Molecular Sciences 19, no. 12 (December 17, 2018): 4075. http://dx.doi.org/10.3390/ijms19124075.
Full textWu, Kou-Juey. "The role of miRNA biogenesis and DDX17 in tumorigenesis and cancer stemness." Biomedical Journal 43, no. 2 (April 2020): 107–14. http://dx.doi.org/10.1016/j.bj.2020.03.001.
Full textDissertations / Theses on the topic "DDX17"
Lorgeoux, Rene-Pierre. "Multiple roles of DDX17 in human immunodeficiency virus type 1 replication." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119579.
Full textLe virus de l'immunodéficience humaine de type 1 (VIH-1) est un petit rétrovirus qui dépend fortement de la machinerie cellulaire afin de compléter son cycle de réplication et produire de nouvelles particules virales infectieuses. La complexité de la régulation du cycle de réplication du VIH-1 reflète la diversité des interactions hôte-virus. Les hélicases sont des enzymes impliquées dans toutes les étapes du métabolisme des acides nucléiques, en réarrangeant les complexes ribonucléprotéiques. La compréhension de l'importance des hélicases dans la réplication du VIH-1 a commencé il y a une dizaine d'années. Depuis, plusieurs études ont rapporté les effets stimulateurs ou inhibiteurs de cette famille de protéines sur le VIH-1. Mon projet de thèse était d'investiguer le rôle des hélicases dans la réplication du VIH-1 ; il comprenait deux parties. Premièrement, nous avons supprimé l'expression de 130 hélicases au moyen de shRNAs dans les cellules SupT1. Ce travail nous a permis d'identifier les voies cellulaires majoritairement impliquées dans la réplication du VIH-1, ainsi que 35 hélicases affectant de manière drastique la production virale. Dans un second temps, nous avons choisi de nous intéresser plus en détails au rôle de la protéine DDX17 dans la réplication du VIH-1. En plus d'identifier pour la première fois une hélicase étant requise pour le décalage du cadre de lecture (-1), nous montrons que DDX17 favorise l'encapsidation de l'ARN viral. Considérant que DDX17 agit également en tant que co-facteur de ZAP (protéine antivirale zinc) dans la dégradation des ARNs du VIH-1 par l'exosome, cela souligne le fait que les hélicases sont multifonctionnelles. Finallement, au cours de ce travail nous avons identifié un certain nombre d'hélicase ayant le potentiel de fortement moduler la production du VIH-1. Des études individuelles seront nécessaires afin de mettre à jour les mécanismes responsables de l'effet de chacun des candidats sur la réplication du VIH-1.
Dardenne, Étienne. "Rôle des ARN hélicases Ddx5 et Ddx17 dans la progression tumorale." Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10048/document.
Full textTumor progression leading to the formation of metastases result from deep modifications of gene expression programs at several levels, including transcription and splicing. During my PhD, I investigated the role in tumor progression of DDX5 and DDX17, two highly related multifunctional DEAD box RNA helicases that are involved in transcription and splicing as well as in microRNA biogenesis. For this purpose, I used two breast cancer models of tumor progression : the 4T1 mouse model composed of cancer cells that exhibit different metastatic properties and MCF10a human cells that undergo epithelial-to-mesenchymal transition upon Tgf-beta treatment, a trans-differentiation process contributes to metastasis formation. In the 4T1 mouse model, I showed that Ddx17 and Ddx5 contribute to tumor-cell invasiveness by controlling both transcriptional and splicing programs. More specifically, I demonstrated that Ddx5 and Ddx17 promote cancer cells aggressiveness by regulating the splicing of the macroH2A1 histone which in turn impacts on the expression of genes implicated in tumor cell invasiveness. In the Tgf-beta induced epithelial-to-mesenchymal trans-differentiation model, I showed that DDX5 and DDX17 dynamically orchestrate transcription, microRNA and splicing programs. The work performed during my PhD highlights the importance of DDX5 and DDX17 RNA helicases as key regulators of tumor progression in breast cancer, and also underlines the role of alternative splicing during tumor progression. Furthermore, this work emphasizes the importance of integrating the different layers of the gene expression process (transcription, splicing, microRNA) for a comprehensive understanding of tumor progression
Ries, Philippe [Verfasser], and Thalia [Akademischer Betreuer] Erbes. "Einfluss von Methadon auf die Genexpression von DDX5 und DDX17 in verschiedenen Brustkrebszelllinien in vitro." Freiburg : Universität, 2020. http://d-nb.info/1212795881/34.
Full textChapus, Fleur. "Role of the DEAD-box Helicases DDX5 and DDX17 in Hepatitis B Virus RNA processing." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSE1098.
Full textRole of the DEAD-box helicases DDX5 and DDX17 in HBV transcriptional regulation and RNA processingChronicity of hepatitis B virus (HBV) infection hinges on the persistence of covalently-closed-circular DNA (cccDNA) in the nucleus of infected hepatocytes. The viral genome associates with histones and non-histone proteins to build a chromatin structure that is subjected to epigenetic regulation translating into different levels of biological activity. A better understanding of the host factors orchestrating HBV minichromosome transcriptional regulation and RNA processing is fundamental for deciphering the mechanisms at the basis of HBV persistence and reactivation. In order to identify the cellular factors regulating cccDNA biology, an ambitious project of cccDNA proteomics (ChroP) has been initiated by Dr. Barbara Testoni. Among the identified cccDNA-associated proteins, the DEAD-box RNA helicases DDX5 and DDX17 particularly interested us for their driving role in mammalian transcriptional regulation and RNA metabolism. Thus, we investigated their role in cccDNA transcriptional activity regulation and HBV RNA processing. Precise characterization of HBV transcripts was performed with a 5' RACE approach set up and published in our lab by Dr. Bernd Stadelmayer. This technique was applied to study viral transcript in a context of DDX5/17 depletion. Furthermore, DDX5/17 belong to the insulator complex CCCTC-binding protein (CTCF). We therefore investigated the role of CTCF in cccDNA biology and viral RNA metabolism. In HBV infected HepG2-NTCP and Primary Human Hepatocytes, siRNA knockdown of DDX5/17 led to a shortening of all the viral transcripts, together with an increase in viral transcript levels and viral particles accumulation in the cytoplasm, without affecting the global level of cccDNA. Next and third generation sequencing allowed the identification of alternative splicing of pgRNA-derived spliced variants and differential usage of polyadenylation site during HBV RNA transcription. Moreover, RNA immunoprecipitation of DDX5 and DDX17 revealed that both of these proteins are directly associated to the viral transcripts and recruit two factors, CPSF6 and NUDT21, involved in alternative polyadenylation site choice. Moreover, we identified CTCF binding sites on HBV genome and by site directed mutagenesis we showed that mutations in CTCF binding sites affect CTCF and DDX5/17 recruitment to cccDNA and subsequently impact HBV RNA processing. Altogether, our data highlight an essential role of DDX5 and DDX17 in the fine tuning of HBV RNA processing, in complex with the insulator protein CTCF and termination factors at the interface between cccDNA and HBV transcripts
Ismael, Hala [Verfasser], and Hans [Akademischer Betreuer] Stahl. "Regulation der U3-, U8- und U13snoRNA-Expression durch Ddx5 und Ddx17 / Hala Ismael. Betreuer: Hans Stahl." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2015. http://d-nb.info/1066237956/34.
Full textTerrone, Sophie. "Connexion entre organisation 3D du génome et épissage alternatif médiée par les hélicases DDX5 et DDX17." Thesis, Lyon, 2019. https://n2t.net/ark:/47881/m6n015wq.
Full textAlternative splicing is the mechanism that allows the production of several mRNA isoforms from the same gene, and that concerns the majority of human genes. As it occurs during transcription, both processes are co-regulated. Several recent studies have proposed that the three-dimensional organization of the genome, which regulates transcription, could also have an impact on splicing. DDX5 and DDX17 are two RNA helicases involved in several steps of RNA biogenesis and processing, including transcription and splicing. Notably, previous studies from our lab have shown they are downregulated during cellular differentiation, which contributes to establish specific splicing programs. Moreover, DDX5/17 interact with CTCF and Cohesin that are key regulators of chromatin topology and looping. This suggests a role for DDX5/17 in genome topology, and could suggest their involvement in the cross-talk between 3D organization and splicing. In order to address this question, we first assessed the impact of DDX5/17 on splicing by RNA-Seq and tested the contribution of CTCF and Cohesin on DDX5/17-dependant exon inclusion. We observed that the co-depletion of CTCF and Cohesin with DDX5/17 increases the effect of the helicases on the inclusion of some exons. Moreover, our results indicate for the first time that depletion of DDX5/17 deregulates transcriptional termination of many genes. Finally, we selected two exons regulated by both DDX5/17 and CTCF and investigated the three-dimensional organization of their associated genes by Chromosome Conformation Capture (3C) assays. The first exon is located within the NCS1 gene while the second exon has a promoter-proximal position in the PRMT2 gene. Our 3C experiments indicate the presence of a chromatin loop between the NCS1 promoter and its internal DDX5/17- and CTCF-regulated exon. Moreover, our results reveal a physical proximity between the promoter and the terminator region of both genes, and a deregulation of this specific configuration upon DDX5/17 depletion, which could possibly lead to transcriptional readthrough. Finally, stabilizing the promoter-terminator loop using a dCas9-based approach altered the inclusion of the PRMT2 promoter-proximal exon. Altogether, our results support the hypothesis of a mechanistical link between the 3D organization of genes and the regulation of alternative splicing and transcription fidelity
Polay, Espinoza Micaela. "Fonctions moléculaires des hélicases ARN DDX5 et DDX17 dans la biologie du muscle dans un contexte sain et pathologique." Phd thesis, Université Claude Bernard - Lyon I, 2014. http://tel.archives-ouvertes.fr/tel-00988051.
Full textBen, Ameur Lamya. "Rôle de l’activation chronique de la voie NF-kB induite par l’oncoprotéine Tax du virus HTLV-1 dans la régulation de l’épissage alternatif." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1136.
Full textThe NF-kB (nuclear factor kB) signaling pathway regulates gene transcription of genes involved in immune response and inflammation. Chronic activation of NF-kB frequently associated with inflammatory disorders and cancer. The functional impacts of NF-kB have long been studied at the promoter level. Nevertheless, recent studies of the chromatin distribution of RelA indicate that this NF-kB subunit is predominantly localized in intragenic regions, including exons and introns, where its functions remain unknown. My work has addressed this question in the context of HTLV-1 infection, which is a constitutive activator of NF-kB, and the causative agent of the Adult T-cell Leukemia. The results show that the activation of NF-kB by the viral oncoprotein Tax results in changes in alternative splicing regulations of GC-rich exons that coincide with the chromatin recruitment of RelA in the vicinity of these exons. Integrative analysis of RNA splicing and chromatin occupancy, combined with experimental chromatin tethering assays (TALE) demonstrate that the intragenic binding of RelA leads to the recruitment of the splicing regulator DDX17, which modulates the inclusion rate of exon thanks to its helicase activity. Altogether, these data reveal that, besides its transcriptional role, NF-kB RelA acts as a chromatin anchor for the splicing factor DDX17 and provides alternative splicing specificity. These data revisit our knowledge of the physiopathologic mechanisms of HTLV-1 associated diseases , as well as other disorders related to the chronic activation of the NF-kB pathway
Zonta, Eleonora. "Implications of RNA helicases ddx5 (p68) and ddx17 (p72) in alternative splicing regulation and mRNA export in a mammary tumor model." Paris 7, 2012. http://www.theses.fr/2012PA077104.
Full textThe RNA helicases ddx5 (p68) and ddx17 (p72) are two highly related multi-functional proteins known to play a role in transcription as co-regulators of various transcription factors, in processing of miRNAs and mRNAs, in particular in splicing. It has been moreover shown that these two helicases are involved in development and in different types of cancer. To better understand the mechanisms by which ddx5 and ddx17 control gene expression, I first investigated the role of ddx5 in the regulation of c-fos, a target gene of estrogen receptor (ER), which ddx5 is a co-activator of. The data demonstrated that this helicase is necessary for estradiol induced-transcriptional activity of the c-fos gene in a breast cancer cell line. Moreover, ddx5 is needed for c-fos co-transcriptional splicing, facilitating its export. Thus, ddx5 is present in c-fos mRNP together with the export factors Aly and TAP. Finally, the results obtained emphasised the ability of ddx5 to follow a transcript ail along its gene expression pathway, from transcription to its passage to the cytoplasm, revealing for the first time a function of this helicase in mRNA export. I worked as well on the role of ddx5 and ddx17 in alternative splicing regulation. After having used a large-scale approach, I focused on the different molecular mechanisms behind exon inclusion or exclusion, in a ddx5/ddx17 dependent fashion, detailing how their RNA helicase activity is required for the inclusion of exons defined by weak 5' splicing sites located in GC-rich regions. Moreover, ddx5/ddx17 depletion results in the inclusion of exons located within AT-rich regions and flanked by both weak 5' and 3' splicing sites likely by inhibiting splicing kinetics. Indeed, I showed the ability of these two proteins in controlling the exon inclusion rate by different mechanisms. These results are important because they expand the known functions of ddx5 and ddxl7 in gene expression regulation and help to better understand how they control gene expression programs and therefore cellular programs altered in tumor progression
Elsden, Joanna Louise. "Oncogenic properties of the DDX1 gene." Thesis, University of Newcastle Upon Tyne, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399340.
Full textBook chapters on the topic "DDX17"
Dueck, Gunter. "Hirn verpflichtet (DD117, Juni 2010)." In Cut & Paste-Management und 99 andere Neuronenstürme aus Daily Dueck, 43–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-43390-4_18.
Full textDueck, Gunter. "DD17: Keiner will gut drauf sein! (März 2006)." In Platons grotesker Irrtum, 55–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-04607-0_17.
Full textConference papers on the topic "DDX17"
Saeed, Mohammad, Alejandro Ibáñez-Costa, Alejandra María Patiño-Trives, María Ángeles Aguirre, and Chary López-Pedrera. "P92 Genomic convergence of locus-based GWAS meta-analysis identifies DDX11 as a novel systemic lupus erythematosus gene." In 12th European Lupus Meeting. Lupus Foundation of America, 2020. http://dx.doi.org/10.1136/lupus-2020-eurolupus.136.
Full textHan, Cecil, Xiongbin Lu, and Xinna Zhang. "Abstract A32: The RNA-binding protein DDX1 promotes primary microRNA maturation and inhibits ovarian tumor progression." In Abstracts: AACR Special Conference on Noncoding RNAs and Cancer: Mechanisms to Medicines; December 4-7, 2015; Boston, MA. American Association for Cancer Research, 2016. http://dx.doi.org/10.1158/1538-7445.nonrna15-a32.
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