Dissertations / Theses on the topic 'Banque de peptides'
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Yribarren, Anne-Sophie. "Sélection et caractérisation d'inhibiteurs d'une activité de type béta-lactamase portée par un anticorps anti-idiotypique : Approche combinatoire par l'utilisation d'une banque peptidique en surface de bactériophage." Compiègne, 2003. http://www.theses.fr/2003COMP1468.
Full textHamon, Christine. "Construction d'une banque de souches transformées de Saccharomyces Cerevisiae pour la sécrétion de peptides aléatoires et l'étude de leurs propriétés biologiques et organoleptiques." Bordeaux 2, 1991. http://www.theses.fr/1991BOR28141.
Full textLAMOUROUX, DOMINIQUE. "Construction et criblage par expression d'une banque d'adn complementaire de leishmania infantum : isolement de sequences codant pour des peptides support de la reaction immune de l'hote." Aix-Marseille 2, 1992. http://www.theses.fr/1992AIX20902.
Full textSavarin, Aline. "Ciblage de l'endothélium tumoral et inflammatoire : Recherche de ligands de la sélectine E et de l'endogline." Phd thesis, AgroParisTech, 2005. http://pastel.archives-ouvertes.fr/pastel-00005017.
Full textDogan, Ismail. "Banques de peptides/CMH présentées par des bactériophages." Paris 6, 2004. http://www.theses.fr/2004PA066094.
Full textSibille, Pierre. "Etude d'interactions moleculaires a l'aide de banques de peptides." Paris 7, 1996. http://www.theses.fr/1996PA077132.
Full textHua, The Duc. "Recherche d'abzymes en vue de la synthèse peptidique à partir de banques combinatoires de fragments d'anticorps exprimés à la surface des phages." Montpellier 2, 1995. http://www.theses.fr/1995MON20174.
Full textLejeune, Valérie. "Méthodologie de synthèse de cyclodepsipeptides appliquée à la préparation de banques combinatoires." Montpellier 2, 2002. http://www.theses.fr/2002MON20071.
Full textJumilly, Anne-Lise. "Étude des domaines d'interaction du facteur Willebrand avec ses ligands : liaison à la glycoprotéine IIb/IIIa et utilisation de banques de peptides exprimés en systèmes biologiques." Paris 7, 2001. http://www.theses.fr/2001PA077257.
Full textBesret, Soizic. "Ligations chimiques : synthèse d'inhibiteurs extracellulaires de la signalisation HGF/SF-MET." Phd thesis, Université du Droit et de la Santé - Lille II, 2011. http://tel.archives-ouvertes.fr/tel-00630962.
Full textStephan-Queffeulou, Emilie. "Sélection de peptides inhibiteurs de l'activité des protéines STAT5." Compiègne, 2011. http://www.theses.fr/2011COMP1928.
Full textConstitutive activation of STAT5 proteins has been demonstrated in numerous cases of malignant hemopathies and solid tumors. This phenomenon results in enhanced transcription of proliferative and anti-apoptotic genes, contributing to cancer development. Consequently, STAT5 proteins are attractive targets for innovative anticancer therapy. Developing STAT5 direct inhibitors is all the more important that current treatment against leukemias are few specific and cause secondary effects. This project aims at selecting STAT5 inhibiting molecules from a peptide library expressed on bacteriophage surface (phage display technology). First, recombinant STAT5B protein was produced, purified and used as a target during affinity-based selection. After a two-step selection, two peptides (PepA and PepM) were identified. The affinity of the two soluble peptides was measured by Biacore (Surface Plasmon Resonance technology) : PepM shows an nanomolar affinity towards STAT5B recombinant protein. This peptide interacts also with active STAT5 protein as demonstrated by pull down experiments. Finally, PepM effects on different cell lines were studied. This peptide penetrates in cells and preliminary results show that PepM diminishes STAT5 dependent cell viability
Thullier, Philippe. "Clonage d'un Fab recombinant, neutralisant le virus de la dengue : Localisation de son epitope par criblage de banques de phages-peptides : Description de son mécanisme d'action." Paris, Muséum national d'histoire naturelle, 2001. http://www.theses.fr/2001MNHN0034.
Full textMatz, Julie. "Développement de fragments d' anticorps simple-domaine inhibiteurs ciblant les protéines structurales et enzymatiques du VIH 1." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4027.
Full textHIV-1 is the infectious agent of AIDS. Numerous therapies exist to fight AIDS, but they are not able to eradicate it, and resistances appear. So, new therapy development is necessary. Single-domain antibodies (sdAb) of llamas have ideal properties to develop neutralizing molecules. So, llamas have been immunized with Vpr and with free or miniCD4 induced trimeric gp140 (extracellular part of the envelope (Env)). SdAb libraries have been built and selections were done by phage display and yeast two hybrid. Three sdAbs targeting the co-receptor binding site of the Env and one sdAb targeting the CD4 binding site have been selected. These sites are conserved but inaccessible by conventional immunoglobulins. These sdAbs have been characterized by ELISA, SPR and FACS for their ability to bind different Env and by single-round assay for their neutralization ability. Multimeric proteins (linked sdAbs) have been built and tested for their neutralization ability. Several of these molecules are able to neutralize a broad spectrum of pseudoviruses. They can be used in microbicides. The characteristic stability of these sdAbs, even without disulfide bound formation, ie into reducing environment, as the cytoplasm, is primordial for intracellular antibody (intrabody) development. One sdAb anti-Vpr has been selected using the Sos Recruitment System (SRS), an yeast two-hybrid system allowing detection of cytoplasmic protein-protein interactions. This sdAb is able to alter the localization of its antigen into eukaryotic cells. It is a proof of concept ot the use of SRS in the selection of intracellularly functional sdAbs
Bantle, Tobias [Verfasser], and Z. L. [Akademischer Betreuer] Pianowski. "Peptide Nucleic Acids (PNA) as a versatile tool for modulation of biological systems with visible light / Tobias Bantle ; Betreuer: Z. L. Pianowski." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/1238148336/34.
Full textFafard-Couture, Laurent. "Développement et caractérisation de A14-Cy5-ACCUM, un nouvel immunoconjugué fluorescent ciblant un marqueur moléculaire spécifique au cancer de la vessie infiltrant pour la cystoscopie guidée par fluorescence." Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11084.
Full textAbstract: Bladder cancer is a frequent and extremely costly cancer when evaluated on a per-patient basis because of its high recurrence rate and patients undergoing complex medical procedures. It is of utmost importance to better identify the aggressiveness of this cancer at initial diagnosis. The standard procedure for bladder cancer detection is still white-light guided cystoscopy, which relies mostly on physicians experience in regard to identifying invasive malignancies. This memoir proposes the use of a new fluorescent immunoconjugate, targeting the alpha subunit of interleukin-5 receptor (IL-5R[apha]), a new biomarker specific to muscle-invasive bladder cancer (MIBC) cells for fluorescence-guided cystoscopy. To do so, a conjugation protocol to fluorescently label a monoclonal antibody with cyanine-5 fluorophores has been developped. Then, a conjugation protocol to attach Cell Accumulator (ACCUM) peptides to this fluorescent immunoconjugate (A14-Cy5-ACCUM) has been optimized. Moreover, the ability of A14-Cy5-ACCUM to stain MIBC cell line HT1376 has been tested. Most importantly, a novel orthotpic rat model of human MIBC for the future preclinical validation of fluorescence-guided cystoscopy in rat bladder has been developped. Finally, a new bladder cancer tissue repository at the CHUS has been established. This repository contains a total of 111 plasma and urine patient samples that will be helpful to evaluate if interleukin-5 blood levels could be used as a prognosis marker for bladder cancer progression. This project laid the basis for the potential evaluation of fluorescence-guided cystoscopy during initial diagnosis of bladder cancer patients to improve their disease-free and long-term survival.
Courtemanche-Asselin, Philippe. "Conception d'une banque de nonapeptides exprimés constitutivement en cellules de mammifères pour l'étude in vivo d'interactions protéine-protéine." Thèse, 2005. http://hdl.handle.net/1866/15155.
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