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Academic literature on the topic 'Protéome bactérien'
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Journal articles on the topic "Protéome bactérien"
Burger, Julien, Jorge Merlet, and Lionel Pintard. "Attaque bactérienne du système ubiquitine-protéasome." médecine/sciences 27, no. 4 (April 2011): 354–56. http://dx.doi.org/10.1051/medsci/2011274007.
Full textELOIT, M. "Vaccins traditionnels et vaccins recombinants." INRAE Productions Animales 11, no. 1 (February 1, 1998): 5–13. http://dx.doi.org/10.20870/productions-animales.1998.11.1.3912.
Full textTSIROULNIKOV, K., H. REZAEI, E. BONCH-OSMOLOVSKAYA, P. NEDKOV, A. GOUSTEROVA, V. CUEFF, A. GODFROY, et al. "Utilisation des microorganismes dans l’hydrolyse des amyloïdes et des farines animales." INRAE Productions Animales 17, HS (June 8, 2020): 109–15. http://dx.doi.org/10.20870/productions-animales.2004.17.hs.3636.
Full textDupond, J. L., B. de Wazieres, P. Million, Ph Humbert, and R. Gibey. "Polynucléoses neutrophiles d'origine systémique ou bactérienne: valeur discriminante de la C Réactive Protéine?" La Revue de Médecine Interne 11, no. 4 (July 1990): 289–92. http://dx.doi.org/10.1016/s0248-8663(05)80860-4.
Full textHattoufi, K., A. Kharbach, and A. Barkat. "Infection néonatale bactérienne précoce à localisation méningée : à propos de 57 nouveau-nés marocains." Périnatalité 13, no. 4 (December 2021): 183–89. http://dx.doi.org/10.3166/rmp-2021-0136.
Full textPagliuso, Alessandro, and Pascale Cossart. "La bactérie Listeria module la signalisation de l’interféron en sécrétant une protéine qui se lie à l’ARN." médecine/sciences 36, no. 12 (December 2020): 1218–20. http://dx.doi.org/10.1051/medsci/2020234.
Full textAdesokan, M. A., and A. R. Akbari. "Cerebrospinal fluid xanthochromia in acute bacterial meningitis as a red herring for subarachnoid haemorrhage: A case report." African Journal of Clinical and Experimental Microbiology 23, no. 4 (October 25, 2022): 442–45. http://dx.doi.org/10.4314/ajcem.v23i4.13.
Full textDominique, M., I. Boulete, C. Bole-Feysot, F. Leon, J. C. Do Rego, S. O. Fetissov, P. Déchelotte, G. Lambert, R. Legrand, and N. Lucas. "Rôle de la protéine bactérienne ClpB et d’un de ses fragments peptidiques dans la régulation de la prise alimentaire." Nutrition Clinique et Métabolisme 33, no. 1 (March 2019): 23–24. http://dx.doi.org/10.1016/j.nupar.2019.01.258.
Full textEpstein, Alberto L. "Maladie d’Alzheimer, neuro-inflammation et virus herpétiques." médecine/sciences 36, no. 5 (May 2020): 479–86. http://dx.doi.org/10.1051/medsci/2020090.
Full textNouri-Merchaoui, S., N. Mahdhaoui, S. Beizig, R. Zakhama, M. Fekih, J. Methlouthi, N. Salem, and H. Seboui. "Intérêt de la C-réactive protéine (CRP) sériée dans la prise en charge des nouveau-nés suspects d’infection bactérienne maternofœtale : étude prospective de 775 cas." Journal de Pédiatrie et de Puériculture 22, no. 2 (April 2009): 80–88. http://dx.doi.org/10.1016/j.jpp.2009.01.007.
Full textDissertations / Theses on the topic "Protéome bactérien"
Coquet, Laurent. "Survie de Yersinia ruckeri dans les bassins piscicoles sous la forme de biofilm, incidence de l'adhésion sur le protéome bactérien." Rouen, 2002. http://www.theses.fr/2002ROUES026.
Full textYersinia ruckeri is the causal agent of yersiniosis, a serious infectious disease in the rainbow trout farms. Three strains have been isolated from a fish farm, essentially from the tank wall surface and from sediments, suggesting a survival in a biofilm status. This hypothesis has been confirmed by the high ability of the majority strain to form biofilms on materials. This environmental strain was sensitive to oxolinic acid and flumequine but exhibited a lower susceptibility to antibiotics as compared to a collection strain. Agar-entrapped and adherent cells were more resistant to antibiotics than plancktonic cells. .
Ramos, Cruz Ana Raquel. "Characterization of the surface of segmented filamentous bacteria from the unicellular to filamentous stage." Electronic Thesis or Diss., Université Paris Cité, 2024. http://www.theses.fr/2024UNIP5192.
Full textKhemiri, Arbia. "Protéome total, membranome et surfaceome de legionella pneumophila philadelphia : Caractérisation du protéome « biofilm »." Rouen, 2008. http://www.theses.fr/2008ROUES028.
Full textLegionella pneumophila is a Gram negative bacterium found world-wide in fresh-water environments, where it persists in a free-living or biofilm-associated state. L. Pneumophila causes the severe pneumonia Legionnnaires’disease. Few data are available on the proteome of L. Pneumophila. In this manuscript, we report the whole proteome and the protein maps of outer membrane proteins (membranome) and surface-associated proteins (surfaceome) of the bacterium. These studies allowed to locate some hypothetical proteins within the outer membrane and at the cell surface. We also identified several majority porins and some proteins which seems specific to Legionella. Among them, some surface-associated proteins might be used for the development of new biosensors. The genome of L. Pneumophila reveals the presence of a high number of genes coding for eukaryotic-like proteins. By using database searches, homology investigations and proteomic approaches, we pointed out the presence in L. Pneumophila of three proteins whose sequences share similarities with that of eukaryotic polypeptides, i. E. , Lpg0211 (TspO), Lpg1974 (Omp32) and Lpg1982 (Lcy). In eukaryotes, the corresponding proteins (PBR, VDAC and cyclophilin) participate to the formation of the mammalian mitochondrial permeability transition pore (MPTP), a complex involved in cell apoptosis. In Legionella, we hypothesized that these proteins are recruited in a multiprotein complex close to the MPTP, which may regulate intracellular survival and/or proliferation. Finally, we compared the proteome of planktonic bacteria with that of biofilm counterparts (formed on stainless steel coupons). Results showed that some proteins were accumulated by sessile organisms. We also identified two hypothetical proteins (Lpg0563s and Lpg1809) that were specifically produced by biofilm cells. Researches of homology showed that Lpg0563 and Lpg1809 are specific to L. Pneumophila
Rueff, Anne-Stéphanie. "Role de protéines associées au cytosquelette bactérien." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00633025.
Full textMarois, Eric. "Analyse de l'induction de gènes de poivron par la protéine AvrBs3 de xanthomonas campestris pv vesicatoria." Paris, Institut national d'agronomie de Paris Grignon, 2002. http://www.theses.fr/2002INAP0005.
Full textPawlak, Barbara. "Mécanisme de sécrétion des protéines chez myxococcus xanthus : étude de la sécrétion d'une protéine étrangère après clonage du gène en aval d'un promoteur inductible." Rouen, 1991. http://www.theses.fr/1991ROUES005.
Full textGervais, Marie-Laure. "Etude des intéractions protéine-protéine par double hybride bactérien : applications en agro-alimentaire et en santé." Phd thesis, Université d'Angers, 2010. http://tel.archives-ouvertes.fr/tel-00555532.
Full textFavini-Stabile, Sandy. "Études biochimiques et structurales des interactions entre la protéine MreB, homologue bactérien de l'actine, et les enzymes Murs impliquées dans le mécanisme de formation de la paroi des bactéries." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENV085.
Full textResistance to antibiotics is increasingly frequent and therapy for patients infected by multi-resistant strains is more and more complicated and delicate, nay sometimes inefficient. Therefore, there is an urgent need for novel antibiotics to stave off the resurgent threat of bacterial epidemics.The relatively well-known mechanism of bacterial cell wall formation remains a pathway of prime interest in the search for therapeutic targets. Strikingly, recent studies have suggested that the biosynthesis of its main component, peptidoglycan, would involve macromolecular protein-protein complexes. Particularly, Mur ligases were suggested to form a multipartite complex which would recruit transglycosidase MurG and bacterial actin homolog MreB as well. Interestingly, these enzymes are targetted by none of the antibiotics in clinical use.The work carried out during this PhD showed by surface plasmon resonance and dot blot techniques that MurD, MurE, and MurF all recognize MurG and MreB, but not each other, whilst the two latter proteins interact. A crystallogenesis screening allowed to determine the crystallogenic fingerprints of single proteins and potential complexes, aiming for the crystal structure of one of the Mur complexes. Thanks to this screening, the structures of MurD, MurE, MurF were solved, suggesting that the conformational flexibility of their C-terminal domain might be involved in complex formation and stability. In addition, two data sets which could correspond to MreB-MurE and MreB-MurF complexes are still beeing processed.These results mark a further step in the characterization of the cytoplasmic peptidoglycan machinery, opening up towards novel therapeutic targets which would impair the integrity of the macromolecular complex
Corneloup, Alix. "La dissémination des séquences REP dans les génomes bactériens : caractérisation des activités des protéines TnpAREP." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30201.
Full textIn spite of their compact size, bacterial genomes carry many repetitive sequences, often important for genome function and evolution. Among them, REPs are short DNA found at high copy number in intergenic regions in many bacterial species. These sequences can form stem-loop structures preceded by a conserved tetranucleotide. They can exist as individual units but also as complex consecutive clusters called BIMEs. REP/BIMEs are known to interact with different proteins and several important roles have been attributed to these sequences in cell physiology. However, their origin and dissemination mechanisms are poorly understood. Recently, a first example of prokaryotic domesticated transposases (TnpAREP) was found associated with REP/BIME sequences in structure called REPtron. REP/BIMEs might represent a special type of non-autonomous transposable element mobilizable by TnpAREP. TnpAREP is member of the HuH enzymes superfamily including Relaxases, Rep proteins of RCR plasmids/ss phages and some transposases. These transposases are fundamentally different from classical transposases. They use HuH motif (Histidine-hydrophobe-Histidine) to coordinate metal cofactor and tyrosine residues (Y) as nucleophile for catalysis. TnpAREP shares certain similarities to Y1 HuH transposases encoded by the IS200/IS605 family which processes only ssDNA substrates. Analysis of E. coli TnpAREP activity in vitro also shown the strict requirement of structured single stranded REP/BIME DNA substrates. Cleavage in vitro occurs at a specific dinucleotide. In contrast to Y1 HuH transposases which are obligatory dimers, E. coli TnpAREP is a monomer as shown by structural studies. Furthermore, TnpAREP activities have never been described in vivo. This raises questions about its catalytic sites and also the way by which it promotes REP/BIME proliferation within their host genomes. The first objective of my PhD was to characterize the TnpAREP catalytic site. My results exclude the possibility of a second catalytic site as observed for REP protein of some plasmid families. Here I show that in vivo, expression of TnpAREP under control of an inducible external promoter is toxic to E. coli cells and induces SOS response, the effect depending on catalytic activity of the protein. I have developed an assay to map TnpAREP cleavage sites in vivo and show that it can cleave both DNA strands on plasmid and bacterial chromosome. In these conditions, an excision of BIME could be observed. I also constructed bacterial strains to perform REP/BIME experimental evolution, results are under analysis. Finally, we are extending our analysis to a subgroup of TnpAREP that are associated with another type of REP/BIME. This comparative analysis not only permitted to generalize some properties observed with E. coli TnpAREP but also revealed some interesting distinct characteristics of this subgroup
Boucrot, Emmanuel. "Analyse moléculaire de SifA, une protéine de virulence de Salmonella typhimurium." Aix-Marseille 2, 2004. http://www.theses.fr/2004AIX22067.
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