Academic literature on the topic 'Protéine de matrice'
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Journal articles on the topic "Protéine de matrice"
El-Asmi, Faten, and Mounira K. Chelbi-Alix. "Les isoformes de PML et la réponse au TGF-β." médecine/sciences 36, no. 1 (January 2020): 50–56. http://dx.doi.org/10.1051/medsci/2019269.
Full textNasser, B., S. Poussard, P. Cottin, and M. S. Istab, Laboratoire de biochimie et toxic El Kebbaj. "Purification et caractérisation de la D-bêta-hydroxybutyrate déshydrogenase de mitochondries de foie de chamelon." Revue d’élevage et de médecine vétérinaire des pays tropicaux 53, no. 2 (February 1, 2000): 122. http://dx.doi.org/10.19182/remvt.9735.
Full textLibeau, Geneviève, J. T. Saliki, and Adama Diallo. "Caractérisation d'anticorps monoclonaux dirigés contre les virus de la peste bovine et de la peste des petits ruminants : identification d'épitopes conservés ou de spécificité stricte sur la nucléoprotéine." Revue d’élevage et de médecine vétérinaire des pays tropicaux 50, no. 3 (March 1, 1997): 181–90. http://dx.doi.org/10.19182/remvt.9567.
Full textAfsar, F. Sule, Safiye Aktas, and Gulden Diniz. "Tenascin-C Expression in Papulosquamous Disorders Other than Psoriasis in Pediatric Patients: An Epiphenomenon?" Journal of Cutaneous Medicine and Surgery 15, no. 1 (January 2011): 1–7. http://dx.doi.org/10.2310/7750.2010.09065.
Full textNYS, Y., M. T. HINCKE, A. HERNANDEZ-HERNANDEZ, A. B. RODRIGUEZ-NAVARRO, J. GOMEZ-MORALES, V. JONCHERE, J. M. GARCIA-RUIZ, and J. GAUTRON. "Structure, propriétés et minéralisation de la coquille de l’œuf : rôle de la matrice organique dans le contrôle de sa fabrication." INRAE Productions Animales 23, no. 2 (April 10, 2011): 143–54. http://dx.doi.org/10.20870/productions-animales.2010.23.2.3296.
Full textLau, Paul, Joseph L. Chin, Stephen Pautler, Hassan Razvi, and Jonathan I. Izawa. "NMP22 is predictive of recurrence in high-risk superficial bladder cancer patients." Canadian Urological Association Journal 3, no. 6 (May 1, 2013): 454. http://dx.doi.org/10.5489/cuaj.1173.
Full textRouayrenc, JF. "Les fibulines : une nouvelle famille de protéines de la matrice extracellulaire." médecine/sciences 14, no. 6-7 (1998): 808. http://dx.doi.org/10.4267/10608/1146.
Full textMOULOUNGUI, Z., E. LACROUX, C. VACA-GARCIA, and J. PEYDECASTAING. "Destruction des farines animales : valorisation des fractions lipidiques en biolubrifiants et additifs biocarburants, et du résidu protéique (ou de l’ensemble)." INRAE Productions Animales 17, HS (December 20, 2004): 117–22. http://dx.doi.org/10.20870/productions-animales.2004.17.hs.3637.
Full textMarin, Frédéric, and Yannicke Dauphin. "Composition of the soluble protein matrices of the Rognacian (Cretaceous) dinosaur eggshells of South East France." Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 1991, no. 4 (January 4, 1991): 243–54. http://dx.doi.org/10.1127/njgpm/1991/1991/243.
Full textGiry-Lozinguez, C., JP Kleman, and Michel Van der Rest. "Modules et interactions moléculaires et caractère modulaire des protéines au sein des matrices extracellulaires." médecine/sciences 10, no. 12 (1994): 1234. http://dx.doi.org/10.4267/10608/2562.
Full textDissertations / Theses on the topic "Protéine de matrice"
Hubert-Luco, Sophie. "Impact de la protéine de matrice des lyssavirus sur la réponse de l'hôte." Paris 7, 2012. http://www.theses.fr/2012PA077053.
Full textThe matrix protein (M) of lyssaviruses plays some pivotal roles during the viral life circle. This study aimed at describing the impact of the M protein on host response. We described and characterized a novel cell protein targeted by the M protein of field isolates of lyssaviruses : RelAp43. We demonstrated that it exhibits all the properties of a class I member of the NF-kB family of transcription factors. We have shown that RelAp43 can modulate gene expression, in particular for genes involved in innate immunity like IFN-p. RelAp43 is able to modigy the equilibrium between the differents NF-kB dimers, by limiting p50 degradation and inhibiting the association between p66/RelA and p50. This work demonstrated that RelAp43 is specifically targeted by M protein from field isolates of lyssaviruses, contrary to vaccine strains. This interaction induces an inhibition of the NF-kB pathway and of IFN-ß expression. We established that residues 77 and 104 of the M protein were necessary to its interaction with RelAp43, while positions 100 and 110 are crucial of the host response inhibition. We also studied the role of protein M multimerisation on its modulation of host response. We developed a protocol of production and purification of M protein in bacteria. Using biophysical approaches (analytical ultracentrifugation and dynamic light scattering), we compared the biophysical properties of M protein in term of multimerisation. We tried to correlate their oligomerisation abilities with some biological observations about the induction of apoptosis and the modulation of NF-kB signaling
Gaudier, Martin. "Etude structurale de la protéine de matrice du virus de la stomatite vésiculaire." Paris 11, 2002. http://www.theses.fr/2002PA112219.
Full textVesicular Stomatitis Virus, an enveloped virus, infects mainly mammals. As it is nonpathogenic for humans and easy to grow, VSV is used as a model to study the different mechanisms of the infectious cycle. During the last stage of this cycle, VSV acquires its membrane by budding through the membrane of its host cell. The matrix protein, one of the five proteins of VSV, plays a major role in this process. This protein is also involved in viral assembly and nucleocapsid condensation and is responsible for the cytopathogenic effects of the virus. Two biochemical properties have been linked to the assembly and budding functions of the M protein : the protein self-associates and binds to membranes. The present work describes the study of M protein by limited proteolysis that lead to the purification of soluble fragments that were crystallized. We also present the determination of the structure of the M protein by radiocrystallography. Together with studies of membrane association of native and mutants of the protein, the structure helped us to propose a mode of membrane interaction of the protein
Gholami, Alireza. "Caractérisation des domaines de la protéine de matrice des lyssavirus impliqués dans l'induction de l'apoptose." Paris 7, 2008. http://www.theses.fr/2008PA077152.
Full textThe matrix protein (m) of lyssaviruses plays a pivotal role during the viral life cycle. We have shown here that m of the mokola virus (mok, a lyssavirus of low pathogenicity, belonging to genotype 3) migrates into the mitochondria and induces an early cell death through mitochondrial pathway, conversely to m of a genotype 1 lyssavirus (tha). Different m-mok truncated mutants have shown that the region involved in this activity is located between residues 67-86 of the molecule (mutant m1-7) where a mitochondrial localization signal also resides. Using a yeast double hybrid system as well as co-immunoprecipitation we have found that the cellular partner of m-mok involved in cell death induction is the subunit 1 of mitochondrial cyt c oxidase complex (cco1). This interaction was not seen with m-tha. We have shown that m1-7 is also involved in cell death induction through a trail-dependant pathway. Site-directed mutagenesis analyses based on amino acid sequence differences of m-tha and m-mok led us to show the independence of the two pathways of the programmed cell death in lyssavirus model which are modulated by two key residues at positions 77 and 81 of m. By resolving the three-dimensional structure of lyssavirus and vesiculovirus m through their crystallization, different structural and functional motifs and domains of m were shown. Those structures have shown a new model of self-association that contributes most probably to regulation of dialogue with the host cell
Kerviel, Adeline. "Implication des domaines basiques de la protéine de matrice M1 dans l'assemblage membranaire du virus de la grippe A." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20129.
Full textThe M1 matrix protein, lying beneath the viral lipid envelop, plays many roles in influenza virus assembly. Not only it structures the viral particle but it also associates to the vRNP complexes in the nucleus and it supposedly binds to the cell plasma membrane and to the cytoplasmic tails of the viral membrane proteins at the assembly site. M1 N-terminal domain, composed of 164 amino acids, exhibits two basic domains: the NLS (Nuclear Localization Signal) on helix 6 and a triplet of arginines on helix 5. We decided to investigate the role of those basic domains regarding the molecular assembly mechanism of the influenza A/H1N1pdm2009 virus and the attachment of M1 at the cell membrane. In vitro, we observed that when the triplet of arginines is mutated, the percentage of M1 bound to LUVs (Large Unilamellar Vesicles) containing negatively charged lipids decreases, as it is the case for a full mutant of the NLS motif. In cellulo, by using cellular fractionation, membrane flotation assays, and immunofluorescence microscopy, we observed that when expressed alone, M1 is poorly bound to the cellular membranes whereas in the presence of NS1/NEP (Non Structural protein 1 and Nuclear Export Protein) and M2 viral proteins, the M1 membrane bound fraction is increased by 10 times. M2 appears to be essential for M1 membrane localization. In order to decipher the mechanism, we used directed site mutagenesis of M1 and M2. When we mutated some negatively charged residues of the M2 cytoplasmic tail, we no longer observed either the localization of M1 at the cell membrane or VLP (Virus Like Particles) production, in agreement with the literature. In addition, when we mutated the M1 arginine triplet, M1 remained cytosolic and VLP production was almost completely abolished, even when M2 and NS1/NEP were coexpressed. Whereas a mutant of the arginine triplet decreases by 20% the percentage of M1 attached to cellular membranes, a mutant of the NLS has a mild effect (10% of decrease is observed). Thus, M1 basic domains, particularly the arginine triplet, can trigger electrostatic interactions between M1 and the lipids, or M1 and the cytoplasmic tail of M2, or both, at the viral assembly site. These results highlight the molecular mechanism of A/H1N1 influenza virus assembly
Sutter, Julien. "SMAR1,un composant de la matrice nucléaire : quelques caractéristiques structurales et fonctionnelles du gène et de la protéine." Université Louis Pasteur (Strasbourg) (1971-2008), 2003. http://www.theses.fr/2003STR13232.
Full textMillon, Fremillon Angélique. "Fonction et régulation de la protéine ICAP-1alpha dans la dynamique de l'adhérence cellulaire dépendante des intégrines à chaîne beta1." Grenoble 1, 2009. http://www.theses.fr/2009GRE10254.
Full textCell adhesion to extracellular matrix mediated by integrins is a highly regulated dynamics process which allows cell motility. Among integrins regulators, ICAP-1alpha interacts with beta1 integrin cytoplasmic tail and disrupts adhesion sites. Since ICAP-1alpha is not localized into adhesions, it could reflects a transitory and finely regulated action onto beta1 integrin. In the first part of my work, I shown that ICAP-1alpha specifically slow-downs adhesion assembly by maintaining the low affinity state of beta1 integrin. Surprisingly, I found an unexpected function of ICAP-1alpha in the sensing of low extracellular matrix densities and in the adaptation of cell adhesive response to this environment. ICAP-1alpha acts as a mechanosensor which limits adhesion sites assembly and slow-downs cell adhesion and migration on low matrix densities. In a second part, I characterized the signaling pathway controlling ICAP-1 activity on beta1 integrin function. ICAP-1alpha is a phosphoprotein which displays different putative phosphorylation sites and one is potentially recognized by the calcium/calmodulin dependant protein kinase II, CaMKII. Many evidences reveal CaMKII implication in the regulation of ICAP-1alpha function. ICAP-1alpha phosphorylation on the CaMKII site induces its interaction onto beta1 integrin. CaMKII activity reduces the formation of adhesion complexes by promoting ICAP-1alpha binding onto beta1 integrin and by maintaining its low affinity state
Fraichard, Stéphane. "Etude de l'expression et de la fonction d'une protéine de la matrice extracellulaire, la Tenebrine, chez Drosophila Melanogaster." Dijon, 2002. http://www.theses.fr/2002DIJOS037.
Full textBelaadi, Nejma. "Régulation de la mitose par la rigidité de la matrice extracellulaire : étude du rôle de la protéine SUN2." Thesis, Nantes, 2017. http://www.theses.fr/2017NANT1028/document.
Full textWithin tissues, cells are surrounded by an extracellular matrix (ECM), whose mechanical properties regulate many aspects of cell behavior, including motility and differentiation. Here we examined the effect of ECM rigidity on cell division. We found that cells divide more rapidly when cultured on substrates with increasing stiffness. We next compared the proteomic content of cells dividing on soft and stiff substrates and we found that ECM rigidity regulates the stability of the LINC complex component SUN2, whose level of expression affects mitotic progression. On rigid substrates, high level of SUN2 promotes cortical actin recruitment, force generation and mitotic progression, while low level of SUN2 delays the onset of anaphase when cells are grown on soft ECM. These results revealed a new mechanism that regulates mitotic progression in response to changes in ECM rigidity
Rousselle, Patricia. "Caractéristiques et fonctions de la kalinine : une protéine spécifique des membranes basales épithéliales." Lyon 1, 1994. http://www.theses.fr/1994LYO10057.
Full textChavey, Carine. "Identification de gènes dérégulés dans le tissu adipeux au cours de l'obésité : étude de la protéine "matricellulaire" SPARC et des métalloprotéinases." Nice, 2003. http://www.theses.fr/2003NICE4082.
Full textObesity represents a major health problem and results from interactions between genetic and environmental factors. By suppressive subtractive hybridization, we identify SPARC as a new extracellular protein upregulated in obese adipocytes. We show that SPARC is regulated in vivo by insulin and food intake. Purified SPARC increases PAI-1 (plasminogen activator inhibitor-1) mRNA level in adipose tissue explants suggesting that SPARC may play a role in adipose tissue development and/or in obesity-associated complications. Moreover, SPARC is expressed in human fat tissue and its expression is increased during adipose conversion of human preadipocytes. Using genetically modified mice on adrenergic receptors, we show that SPARC may be involved in adipose tissue hyperplasia. Next, we analyzed the expression of the metalloproteinases (MMP) and their inhibitors (TIMP) during obesity. We observe that some MMPs and TIMPs are dysregulated in obese adipose tissue especially in stromal fraction. We show that their proteolytic activities are also modulated and we discover a new ~30kDa-caseinolytic activity upregulated in obese adipocytes. Finally, the MMP inhibitor, BB-94, represses the adipose conversion of rat primary preadipocytes by preventing the early expression of C/EBPb transcription factor. These results suggest a major role of the MMPs/TIMPs balance in adipogenesis and during adipose tissue growth. In conclusion, we demonstrate that proteins involved in extracellular matrix integrity, such as SPARC and the metalloproteinases, play an important role in adipose tissue development during obesity. Extracellular matrix remodelling could be required for adipose tissue growth
Books on the topic "Protéine de matrice"
C, Parks William, and Mecham Robert P, eds. Matrix metalloproteinases. San Diego: Academic Press, 1998.
Find full textBook chapters on the topic "Protéine de matrice"
Reiche, Ina, Aurélien Gourrier, and Jolanda Spadavecchia. "De l’analyse des ivoires archéologiques dorés à la synthèse archéo-inspirée des nanoparticules hybrides pour les applications biomédicales." In Regards croisés: quand les sciences archéologiques rencontrent l'innovation, 123–38. Editions des archives contemporaines, 2017. http://dx.doi.org/10.17184/eac.3793.
Full textConference papers on the topic "Protéine de matrice"
Vo Quang Costantini, S., S. Petit, A. Nassif, F. Ferre, and B. Fournier. "Perspectives thérapeutiques du matrisome gingival dans la cicatrisation pathologique." In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206602013.
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