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Academic literature on the topic 'Protéines – Dénaturation'
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Journal articles on the topic "Protéines – Dénaturation"
Pellerin, Patrice, Elizabeth Waters, Jean-Marc Brillouet, and Michel Moutounet. "Effet de polysaccharides sur la formation de trouble protéique dans un vin blanc." OENO One 28, no. 3 (September 30, 1994): 213. http://dx.doi.org/10.20870/oeno-one.1994.28.3.1144.
Full textPERROT, C. "Les protéines de pois : de leur fonction dans la graine à leur utilisation en alimentation animale." INRAE Productions Animales 8, no. 3 (June 22, 1995): 151–64. http://dx.doi.org/10.20870/productions-animales.1995.8.3.4122.
Full textSaulnier, F., F. Ferrera, A. Choukri, J. M. Girardet, and G. Linden. "Estimation de la dénaturation des protéines par spectrofluorimétrie d'absorption moléculaire : applications aux lactosérums industriels." Le Lait 71, no. 4 (1991): 511–18. http://dx.doi.org/10.1051/lait:1991439.
Full textMoumen, O., Y. Habibi, Z. Zaagane, and O. Ouldali. "Étude de l’activité anti-inflammatoire et antihémolytique des graines de Lepidium sativum L. (cresson alénois)." Phytothérapie, 2021. http://dx.doi.org/10.3166/phyto-2021-0264.
Full textDissertations / Theses on the topic "Protéines – Dénaturation"
Toustou, Mathilde. "Stabilisation thermique de protéines par des polymères." Paris 6, 2004. http://www.theses.fr/2004PA066424.
Full textAwama, Mohamad Ayman. "Relation structure-fonction dans la famille des guanidino kinases." Lyon 1, 2008. http://www.theses.fr/2008LYO10255.
Full textThe first part of this thesis describes the comparative unfolding of guanidino kinases with differing quaternary structure (monomer, dimer or octamer). These enzymes catalyze the reversible transfer of the ATP γ phosphate to a guanidylic acceptor (creatine, arginine). We have shown, that for dimer or octamer creatine kinases, association of subunits is required for expression of catalytic activity. However, a higher level of quaternary structure does not provide these enzymes an increased conformational stability as compared to a monomeric arginine kinase. In a second part, we describe the characterization of a new guanidino kinase displaying a duplicated structure and which is expressed in Schistosoma mansoni cercariae. We have developed expression and purification protocols for the untagged protein, identified its physiological substrates, defined its enzymatic parameters in the direction of phosphagene formation, crystallized this enzyme and determined its three-dimensional structure by X-ray diffraction
Capron, Arnaud. "Etude de la voie de protéolyse D-box-dépendante chez les plantes." Université Louis Pasteur (Strasbourg) (1971-2008), 2003. http://www.theses.fr/2003STR13191.
Full textSourisseau, Tony. "Etude du système ubiquitine-protéasome dans l'apoptose." Rennes 1, 2002. http://www.theses.fr/2002REN10009.
Full textSolis, Pacheco Josue Raymundo. "Modifications de la surface de la [béta]-galactosidase de Kluyveromyces lactis : effets sur la stabilisation thermique." Toulouse, INSA, 2003. http://www.theses.fr/2003ISAT0007.
Full textTwo types of molecules were used for the chemical modification of th beta-galactosidase : The dextran that has a hydrophile character and the glycol polyethylene that is an amphiphile polymer. The property of the modified beta-galactosidase were studied. The variations such that the hydrodynamics volume, the charge and the hydrophobe character of the surface ; also variations of catalytic parameters of the enzyme and his thermal stability. Property of modified enzymes in comparison with his stability to been observed thanks to the determination the protective effect and deactivation by differential determination scanning. We were able to show that the liaison of the dextran induces an increase of his thermal stability in aqueous environment. The realized modification with PEG (low level) give place to increase of the hydrophobe character of the beta-galactosidase. Nevertheless a very pronounced decrease of the activity of the beta-galactosidase could be observed after these modifications
Linares, Laëtitia. "Caractérisation de l'ubiquitylation-dégradation médiée par Mdm2, de la protéine oncosuppressive p53." Montpellier 2, 2003. http://www.theses.fr/2003MON20079.
Full textThirant, Cécile. "Approche protéomique de la physiopathologie des gliomes humains." Paris 6, 2010. http://www.theses.fr/2010PA066338.
Full textBetton, Jean-Michel. "Étude du repliement in-vitro de la phosphoglycérate kinase in-vitro." Paris 11, 1987. http://www.theses.fr/1987PA112277.
Full textCouthon, Fabienne. "Etude de la dénaturation d'une protéine dimérique : la créatine kinase de muscle de lapin." Lyon 1, 1995. http://www.theses.fr/1995LYO10257.
Full textNominé, Yves. "Caractérisation biophysique de la qualité des protéines de fusion : application à l'étude structurale et fonctionnelle de l'oncoprotéine virale E6." Strasbourg 1, 2002. https://publication-theses.unistra.fr/public/theses_doctorat/2002/NOMINE_Yves_2002.pdf.
Full textE6 is an oncoprotein produced by "high risk" Human Papillomaviruses (HPVs) involved in cervical cancers. E6 participates oncogenesis through different pathways, in particular by degrading the cellular tumor suppressor protein p53. The aim of this thesis was to solve the solution structure of E6 by Nuclear Magnetic Resonance (NMR). The introduction chapter first focuses on the different states (micro- and macroscopic) adopted by globular proteins in solution, including notions such as folding and stability. Then we record the principles, applications and limits of various biophysical techniques for the study of proteins. Finally, we briefly introduce the biological context of E6 protein. At the start of this work, E6 had never been purified although its sequence was known since 1985. In the results section, we first demonstrate that bacterial expression of E6 fused to the C-terminus of MBP (Maltose Binding Protein) generates " soluble inclusion bodies ". These particles, which originate from agregation of misfolded E6 moieties, remain soluble thanks to the high solubility of MBP moities. These observations have allowed us to produce soluble and folded samples of full-length E6 as well as its two zinc-binding domains. Finally, we have managed to solve the NMR structure of the C-terminal zinc-binding domain. On another hand, the optimized quality of our E6 samples have allowed us to demonstrate E6 binding to a particular DNA structural motif found in four-way DNA junctions. The kinetic parameters of this interaction have been determined by BIAcore. This work will provide a better understanding of the molecular pathways of E6 action and opens the way for new therapeutic strategies against cervical cancers. Furthermore, our methods for control and optimization of protein fusion quality can be generalized for future studies of other recalcitrant proteins