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Academic literature on the topic 'Bioinformatique structurale'
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Journal articles on the topic "Bioinformatique structurale"
Lévy, Daniel, Aurélie Di Cicco, Aurélie Bertin, and Manuela Dezi. "La cryo-microscopie électronique révèle une nouvelle vision de la cellule et de ses composants." médecine/sciences 37, no. 4 (April 2021): 379–85. http://dx.doi.org/10.1051/medsci/2021034.
Full textLagarde, Nathalie, Elodie Goldwaser, Tania Pencheva, Dessislava Jereva, Ilza Pajeva, Julien Rey, Pierre Tuffery, Bruno O. Villoutreix, and Maria A. Miteva. "A Free Web-Based Protocol to Assist Structure-Based Virtual Screening Experiments." International Journal of Molecular Sciences 20, no. 18 (September 19, 2019): 4648. http://dx.doi.org/10.3390/ijms20184648.
Full textBernier, Louis. "Génomique des champignons ophiostomatoïdes : un gène, c’est bien; deux, c’est mieux; deux mille, c’est encore mieux!" Phytoprotection 85, no. 1 (August 27, 2004): 39–43. http://dx.doi.org/10.7202/008905ar.
Full textETCHEBEST, Catherine. "Bioinformatique structurale - Bases de données et méthodes de prédiction." Technologies biomédicales, May 2016. http://dx.doi.org/10.51257/a-v1-bio7060.
Full textDissertations / Theses on the topic "Bioinformatique structurale"
Madaoui, Hocine. "Prédiction structurale et ingénierie des assemblages macromoléculaires par bioinformatique." Phd thesis, Université Paris-Diderot - Paris VII, 2007. http://tel.archives-ouvertes.fr/tel-00553875.
Full textMadaoui, Hocine. "Prédiction structurale et ingenierie des assemblages macromoléculaires par bioinformatique." Paris 7, 2007. https://tel.archives-ouvertes.fr/tel-00553875.
Full textThe high-throughput characterization of the protein-protein interactions networks laid the bases for the first interaction maps in all model organisms, including human. In contrast, the structures of the protein assembles are still restricted to a very limited set of interactions. In this work, a specific evolutionary pressure that is exerted at protein interfaces has been revealed. To our knowledge, no such effect had been previously described. Based on this finding, a novel bioinformatic approach, called scotch (surface complementarity trace in complex history) has been developed to predict the structures of protein assembles. Coupled to a docking program, such as scotcher also developed in this work, this approach was shown to predict efficiently the structures of many complexes. This work also focuses on the inhibition of protein interactions by synthetic peptides, rationally designed on the basis of the complex structure. The results obtained for two examples, the asf1 - histone h3/h4 and the gp120 - cd4 complexes emphasize the high interest of rational design of complex interface for the development of novel therapeutic strategies
Sagot, Marie-France. "Ressemblance lexicale et structurale entre macromolécules : formalisation et approches combinatoires." Marne-la-Vallée, 1996. http://www.theses.fr/1996MARN0049.
Full textPihan, Émilie. "Recherche de nouveaux antipaludiques par bioinformatique structurale et chémoinformatique : application à deux cibles : PfAMA1 et PfCCT." Thesis, Nice, 2013. http://www.theses.fr/2013NICE4039/document.
Full textHuman malaria is caused by five parasitic species of the genus Plasmodium, P. falciparum being the most deadly. Drug resistance of some parasite strains has been reported for commercial drugs. Vector mosquitoes are resistant to perythroid insecticides and no successful vaccine is available. This disease is a public and economic health issue for developing countries. My PhD projects investigate new treatments for malaria, by targeting two new proteins. Apicomplexa parasites have developed a unique invasion mechanism involving a tight interaction formed between the host cell and the parasite surfaces called Moving Junction. The structural and functional characterization of the AMA1-RON2 complex pave the way for the design of low molecular weight compounds capable of disrupting the AMA1-RON2 assembly and thereby invasion. The parasite also needs phospholipids to build its membrane during the erythrocytic cycle. There are six times more phospholipids in infected erythrocytes compared to healthy ones. Our strategy is to inhibit the de novo Kennedy pathway and more precisely its rate-limiting step catalysed by the enzyme PfCCT. Filters were used for ligand-based (LBVS) and structure-based virtual screening (SBVS) of commercial chemical databases that I have prepared. For each project, molecules were selected in terms of their docking scores and their interactions with key active site residues. By combining structural bioinformatics and cheminformatics, we identified potential inhibitors of the two protein targets
Pihan, Émilie. "Recherche de nouveaux antipaludiques par bioinformatique structurale et chémoinformatique : application à deux cibles : PfAMA1 et PfCCT." Electronic Thesis or Diss., Nice, 2013. http://www.theses.fr/2013NICE4039.
Full textHuman malaria is caused by five parasitic species of the genus Plasmodium, P. falciparum being the most deadly. Drug resistance of some parasite strains has been reported for commercial drugs. Vector mosquitoes are resistant to perythroid insecticides and no successful vaccine is available. This disease is a public and economic health issue for developing countries. My PhD projects investigate new treatments for malaria, by targeting two new proteins. Apicomplexa parasites have developed a unique invasion mechanism involving a tight interaction formed between the host cell and the parasite surfaces called Moving Junction. The structural and functional characterization of the AMA1-RON2 complex pave the way for the design of low molecular weight compounds capable of disrupting the AMA1-RON2 assembly and thereby invasion. The parasite also needs phospholipids to build its membrane during the erythrocytic cycle. There are six times more phospholipids in infected erythrocytes compared to healthy ones. Our strategy is to inhibit the de novo Kennedy pathway and more precisely its rate-limiting step catalysed by the enzyme PfCCT. Filters were used for ligand-based (LBVS) and structure-based virtual screening (SBVS) of commercial chemical databases that I have prepared. For each project, molecules were selected in terms of their docking scores and their interactions with key active site residues. By combining structural bioinformatics and cheminformatics, we identified potential inhibitors of the two protein targets
Magis, Cedrik. "Conception de Ligands Protéiques par Bioinformatique et Modélisation Moléculaire." Phd thesis, Museum national d'histoire naturelle - MNHN PARIS, 2007. http://tel.archives-ouvertes.fr/tel-00553476.
Full textNehdi, M. Atef. "Étude structurale du ribozyme VHD antigénomique par évolution in vitro couplée à une analyse bioinformatique." Thèse, Université de Sherbrooke, 2007. http://savoirs.usherbrooke.ca/handle/11143/4241.
Full textNehdi, M. Atef. "Étude structurale du ribozyme VHD antigénomique par évolution in vitro couplée à une analyse bioinformatique." [S.l. : s.n.], 2007.
Find full textAndreani, Jessica. "Analyse évolutive, prédiction structurale et inhibition des interactions protéine-protéine." Paris 6, 2013. http://www.theses.fr/2013PA066291.
Full textLes interactions protéine-protéine sont fondamentales dans la plupart des processus cellulaires. Cette thèse est centrée sur l’analyse et la prédiction de ces interactions en utilisant à la fois les données structurales et l’information issue de l’évolution. A travers l’étude de plus de 1000 couples d’interfaces homologues, extraits d’une base de données développée dans notre équipe, nous avons mis en évidence une plasticité étonnante dans l’évolution de la structure des interfaces. Nous avons cependant identifié des propriétés assez conservées qui fournissent des pistes pour l’extraction d’information à partir des alignements de séquences multiples de deux partenaires en interaction. Nous avons ensuite développé une fonction de score « gros grain » utilisant un potentiel statistique multi-corps couplé à l’information évolutive. Cette fonction améliore les prédictions d’interfaces protéiques et a été utilisée dans deux cas concrets d’amarrage moléculaire. Enfin, nous avons développé un protocole bio-informatique robuste pour le design d’inhibiteurs peptidiques d’une interaction protéine-protéine
Desmet, François-Olivier. "Bioinformatique et épissage dans les pathologies humaines." Thesis, Montpellier 1, 2010. http://www.theses.fr/2010MON1T017.
Full textDiscovered in 1977, splicing is a post-transcriptional maturation process that consists in link-ing exons together and removing introns from a pre-messanger RNA. For splicing to be cor-rectly undertaken by the spliceosome and its auxiliary proteins, several signals are located along the pre-messanger RNA sequence. Nearly half of pathogenous mutations in humans are now recognized to impact splicing and leading to a gene dysfunction. Therefore it is es-sential for biologists to detect those signals in any genomic sequence.Thus, the goals of this thesis were to conceive new algorithms: i) to identify splicing signals; ii) to predict the impact of mutations on these signals and iii) to give access to this information to researchers thanks to the power of bioinformatics. The proposed solution, Human Splicing Finder (HSF), is a web application able to predict all types of splicing signals hidden in any sequence extracted from the human genome. We demonstrated the prediction's efficiency of HSF for all situations associated with pathogenous mutations for which an impact on splicing has been experimentally demonstrated. Along with these direct benefits for the knowledge of biological processes for splicing and diagnosis, new genotype-specific therapeutic approaches can also benefit from these new algorithms. Thus, HSF allows to better target antisense olignucleotides used to induce exon skipping in Duchenne myopathy and dysferlinopathies.The recent recognition of the major interest of splicing in various domains such as fundamen-tal research, therapeutics and diagnosis needed a one stop shop for splicing signals. HSF has for object to fulfill this need, being regularly updated to integrate new knowledge and is already recognized as an international reference tool