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Academic literature on the topic 'ARN de transfert de la thréonine'
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Journal articles on the topic "ARN de transfert de la thréonine"
Kahn, A. "Le code génétique et la spécificité des ARN de transfert." médecine/sciences 5, no. 2 (1989): 119. http://dx.doi.org/10.4267/10608/3928.
Full textLEROUX, C., and G. TOSSER-KLOPP. "La fonction du gène : les grandes étapes de l’utilisation de l’information génétique." INRAE Productions Animales 13, HS (October 22, 2000): 21–28. http://dx.doi.org/10.20870/productions-animales.2000.13.hs.3807.
Full textSacconi, S., L. Salviati, S. DiMauro, D. DeViVo, M. Davidson, and C. Desnuelle. "M - 15 C5545T : une mutation dominante d’un ARN de transfert (ARNt) mitochondrial humain induisant un « saut du codon stop »." Revue Neurologique 163, no. 4 (April 2007): 117. http://dx.doi.org/10.1016/s0035-3787(07)90711-0.
Full textReboud-Ravaux, Michèle. "Dégradation induite des protéines par des molécules PROTAC et stratégies apparentées : développements à visée thérapeutique." Biologie Aujourd’hui 215, no. 1-2 (2021): 25–43. http://dx.doi.org/10.1051/jbio/2021007.
Full textDissertations / Theses on the topic "ARN de transfert de la thréonine"
Walbott, Hélène. "Etude biochimique et structurale de deux pyrimidine-c5 méthyltransférases des arn de transfert." Paris 11, 2007. http://www.theses.fr/2007PA112159.
Full textIn the cell, tRNA is a key molecule of genetic translation. To become functional, it undergoes different steps of post-transcriptional maturation. During this process, some of its nucleosides are chemically modified by modification enzymes. My thesis project focused on the biochemical and structural study of two tRNA C5-pyrimidine methyltransferases (MTases). The first part of my work consisted in the biochemical characterization of the S. Cerevisiae C5-cytosine MTase, Trm4. The analysis of its catalytic mechanism and of its modular organization was then realized. The second part of my work contributed to the identification of the P. Abyssi tRNA m5U54 MTase, PabTrmU54, and led to the resolution of its crystal structure in complex with S-adenosyl-L-homocysteine, by X-ray crystallography. Finally, all these results participated in the improvement of our knowledge about the specific mode of RNA recognition by modification enzymes
Guillon, Jordan. "Caractérisation moléculaire de mécanismes d’échappement à la sénescence : définition d'une hétérogénéité de la sénescence Regulation of senescence escape by TSP1 and CD47 following chemotherapy treatment Regulation of senescence escape by the cdk4–EZH2–AP2M1 pathway in response to chemotherapy tRNA biogenesis and specific aminoacyl-tRNA synthetases regulate senescence stability under the control of mTOR. Proteomics approaches to define senescence heterogeneity and chemotherapy response Chemotherapy-induced senescence, an adaptive mechanism driving resistance and tumor heterogeneity." Thesis, Angers, 2020. http://www.theses.fr/2020ANGE0005.
Full textSenescence is induced as a result of telomeric shortening, activation of oncogenes or in response to chemotherapy. This tumour suppression mechanism prevents the proliferation of abnormal cells and transformation. However, some studies have shown that in response to chemotherapy, senescence is more of an adaptation mechanism allowing tumour cells to escape. Thus, we have characterized new escape mechanisms allowing to define senescence heterogeneity. During our studies, we observed that the stability of this suppressive mechanism is epigenetically regulated by EZH2. This methylase modulates the expression of AP2M1, an endocytosis protein required for escape. The stability of senescence is also modulated by secreted SASP factors such as TSP1. By interaction with its receptor CD47, this glycoprotein limits the emergence of persistent cells. The reduction in the expression of this receptor then favours the escape of senescence. Finally, tRNA biosynthesis also modulates the stability of this suppressive mechanism. During the emergence of persistent cells, mTOR promotes the expression of specific tRNAs and the resolution of protein stress. The expression of the corresponding tRNA ligases is then required for escape. Thus, senescence is more heterogeneous than initially described. Its stability is disturbed by the expression of epigenetic regulators, endocytosis proteins, specific receptors and by the deregulation of tRNA biosynthesis
Gaudin, Cyril. "Nouvelles caractérisations structurales de l'ARN transfert-messager." Rennes 1, 2004. http://www.theses.fr/2004REN10023.
Full textMorelle, Geoffrey. "Les ARN de transfert, une nouvelle source de petits ARN non-codants chez Arabidopsis thaliana." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAJ015/document.
Full textDuring the last decade, a new class of small non-coding RNAs called tRNA-derived fragments (tRFs) has emerged. Whilst the canonic role of tRNA is well-known, the reason(s) why stable tRFs remains in the cell is unknown. Indeed, the number of tRFs has rapidly increased in various evolutionary divergent organisms. To date, only few data on their biogenesis and on their biological roles is known but their importance in the regulation of gene expression and in cell life is expanding. In plants, the existence of tRFs has also been reported but only few data are available. Using deep-sequencing on various small RNA libraries from Arabidopsis thaliana and Northern blots experiments, we confirmed the existence of a large but specific population of tRFs. Following these observations, three questions are addressed. First, what are the enzymes responsible for tRFs biogenesis, second where are tRFs generated and third, are tRFs merely degredation by-products or do they have biological functions?
Barraud, Pierre. "Etudes structurales de différents processus biologiques impliquant les ARN de transfert." Phd thesis, Université René Descartes - Paris V, 2007. http://tel.archives-ouvertes.fr/tel-00364789.
Full textLaforest, Marie-Josée. "Phylogénie de l'édition des ARN de transfert mitochondriaux chez les chytridiomycètes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ65315.pdf.
Full textBarraud, Pierre. "Etudes structurales de différents processus biologiques impliquant les ARN de transfert." Paris 5, 2008. http://www.theses.fr/2008PA05P616.
Full textDuring this thesis, we have studied several biological processes involving tRNA. First, the study of the role of the NC protein in the formation of the HIV-1 reverse transcription initiation complex enabled us to identify a strong and specific binding site for the NC onto the D-arm of tRNALys3. This allows the melting of tertiary interactions between the T and D-arms. Secondly, the structure the m1A58 MTase of T. Thermophilus was solved by crystallography. Three residues involved into catalysis and tRNA substrat recognition were identified. In addition, experiments revealed the 1/2 stoichiometry of the TrmI tRNA complex. Thirdly, the resolution of the E. Coli initiator tRNAfMet structure uncovered a unique conformation of the anticodon region. This peculiar structure put in light biochemical results of the literature and suggests a mechanism by which the translation initiation machinery could discriminate the initiator tRNA
Gasparutto, Didier. "Synthèse chimique totale d'un ARN de transfert avec ses bases modifiées." Grenoble 1, 1992. http://www.theses.fr/1992GRE10148.
Full textOuenzar, Bouchra. "Un exemple de spécialisation de la population des ARN de transfert en relation avec la différenciation cellulaire chez le poulet." Paris 11, 1987. http://www.theses.fr/1987PA112145.
Full textBonnefond, Luc Giegé Richard Rudinger-Thirion Joëlle. "La tyrosyl-ARNt synthétase mitochondriale humaine originalités fonctionnelles, structurales et place dans l'évolution /." Strasbourg : Université Louis Pasteur, 2007. http://eprints-scd-ulp.u-strasbg.fr:8080/809/01/Bonnefond_Luc_2007.pdf.
Full textBooks on the topic "ARN de transfert de la thréonine"
Hatfield, Dolph L. Transfer RNA in Protein Synthesis. Taylor & Francis Group, 2017.
Find full textL, Hatfield Dolph, Lee Byeong J, and Pirtle Robert M, eds. Transfer RNA in protein synthesis. Boca Raton: CRC Press, 1992.
Find full textLestienne, Patrick, ed. Mitochondrial Diseases: Models and Methods. SPRINGER-VERLAG, 1999.
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