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Academic literature on the topic 'Recombinant protéique'
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Journal articles on the topic "Recombinant protéique"
Barbet, Anthony F., Travis McGuire, and Suman M. Mahan. "Séquence, expression élevée et purification d’une protéine recombinante de 21 kDa de Cowdria raminantium, à partir d’ Escherichia coli." Revue d’élevage et de médecine vétérinaire des pays tropicaux 46, no. 1-2 (January 1, 1993): 165. http://dx.doi.org/10.19182/remvt.9353.
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 textde Monti, Mireille, Sylvie Miot, Pascale Le Goff, and Jacques Duval. "Caractérisation d'une hémopexine sérique de truite par utilisation d'une protéine recombinante." Comptes Rendus de l'Académie des Sciences - Series III - Sciences de la Vie 321, no. 4 (April 1998): 299–304. http://dx.doi.org/10.1016/s0764-4469(98)80055-3.
Full textLabie, D. "Peut-on augmenter l'efficacité du BCG en l'utilisant comme vecteur d'une protéine recombinante ?" médecine/sciences 17, no. 5 (2001): 667. http://dx.doi.org/10.4267/10608/1987.
Full textSalih Alj Debbarh, H., H. Hasnaoui, A. Souriau, A. Belhouari, R. Saïle, and A. Rodolakis. "Chlamydiose abortive des petits ruminants au Maroc : valeur épidémiologique d’un kit Elisar de Chlamydophila abortus (Chlamydia psittaci sérotype 1)." Revue d’élevage et de médecine vétérinaire des pays tropicaux 54, no. 3-4 (March 1, 2001): 201. http://dx.doi.org/10.19182/remvt.9773.
Full textLe Quellec, Sandra. "Intérêt de la protéine de fusion recombinante facteur VIII-Fc chez les patients hémophiles A sévères." Hématologie 20, no. 6 (November 2014): 304–6. http://dx.doi.org/10.1684/hma.2014.0976.
Full textJongejan, Frans, N. De Vries, J. Nieuwenhuijs, A. H. M. Van Vliet, and L. A. Wassink. "La protéine immunodominante de Cowdria ruminantium Cr32 conservée dans le genre Ehrlichia." Revue d’élevage et de médecine vétérinaire des pays tropicaux 46, no. 1-2 (January 1, 1993): 145–52. http://dx.doi.org/10.19182/remvt.9350.
Full textOTSMANE, B., G. DOSSET, J.-P. LEBEAU, and H. WATIER. "LES ANTICORPS MONOCLONAUX ANTI-SARS-COV-2 ET LE ROLE ESSENTIEL DES MEDECINS GENERALISTES DANS CETTE NOUVELLE APPROCHE THERAPEUTIQUE." EXERCER 32, no. 172 (April 1, 2021): 166–72. http://dx.doi.org/10.56746/exercer.2021.172.166.
Full textLaunay, O., E. Konate, M. Cachanado, M. Lachâtre, I. Ben Ghezala, K. Lacombe, F. Laine, C. Schmidt-Mutter, X. de Lamballerie, and T. Simon. "Persistance des anticorps neutralisants induits par le vaccin à protéine recombinante souche B1.531 contre les variants Omicron du SARS-COV-2." Médecine et Maladies Infectieuses Formation 2, no. 2 (May 2023): S23. http://dx.doi.org/10.1016/j.mmifmc.2023.03.056.
Full textFournet, X., P. Dubernet-Gaudiot, M. Treilhaud, and Y. Blanloeil. "Utilisation de protéine C activée recombinante (rPCa) humaine (Xigris®) pour sepsis sévère en présence d'un épanchement péricardique après chirurgie cardiaque récente." Annales Françaises d'Anesthésie et de Réanimation 24, no. 4 (April 2005): 435–36. http://dx.doi.org/10.1016/j.annfar.2005.02.005.
Full textDissertations / Theses on the topic "Recombinant protéique"
Rigo, Maxime. "Rôle de l'adaptateur protéique carma1 dans le mécanisme d'action de l'anticorps recombinant anti-cd4 13b8.2." Thesis, Montpellier 1, 2010. http://www.theses.fr/2010MON13502/document.
Full textThe recombinant anti-CD4 antibody 13B8.2 demonstrated capabilities complement dependent lysis (CDC) and inhibition of cell proliferation in the treatment of hematopoietic tumors CD4 +. Although it has been demonstrated that its antiproliferative activity through modulation of transcription factor NF-kB, the precise mechanisms leading to them remain unexplained. Within the laboratory, previous studies have shown that anti-CD4 13B8.2 induced a reorganization and modulation of proteins in rafts by concentrating CD4 and by excluding proteins ZAP70, SLP76, Vav1 and PLC(nu)1 . We tried to explain the mechanisms involved in the modulation of proteins within lipid microdomains, and we propose that the signaling pathway is involved in Carma1 observed effects on the transcription factor NF-kB. This study demonstrates that the biological effects of recombinant antibody 13B8.2 pass through a modulation of the channel Carma1, Bcl10, MALT1. 13B8.2 antibody induces a reorganization of these proteins outside the lipid membrane microdomains with a dissociation of the complex that can no longer transmit signals leading to activation of NF-kB. We also demonstrated that the protein reorganization at the membrane induced by anti-CD4 13B8.2 accompanied by modulation of lipid microdomains species. Thus, we see an increased level of fatty acids like C18: 0, and increased activity of acid sphingomyelinase leads to an increased rate of ceramide. Parallel increase of ceramide, induced by bacterial sphingomyelinase induced reorganization of ZAP70 outside microdomains similarly to the antibody 13B8.2. A better understanding of signaling mechanisms of the anti-CD4 13B8.2, will identify new therapeutic approaches for modulating the proliferation of T cells and their sensitization to chemotherapy. This work paves the way for potential therapies targeted to lipid microdomains
Raingeaud, Joël. "Synthèse et purification d'un analogue du neuropeptide VIP (vasoactive intestinal peptide) par les technologies de l'ADN recombinant et du génie protéique." Limoges, 1994. http://www.theses.fr/1994LIMO0006.
Full textPoenou, Géraldine. "Assemblage de la machinerie moléculaire de la coagulation : apprendre de l'évolution adaptative du Facteur X de venin de serpent." Electronic Thesis or Diss., Sorbonne université, 2024. http://www.theses.fr/2024SORUS042.
Full textHuman hemostasis is regulated by the activity of enzyme-cofactor complexes macromolecular molecules that require a negatively charged membrane surface for their assembly. In addition to the spatial organization of coagulation reactions during vascular lesions, the formation of the FX/FV complex on the phospholipid surface allows the amplification of the conversion of FIl to Flla. However, the knowledge on the precise molecular mechanisms of the phenomenon of amplification of hemostasis on the lipid membrane surface are incomplete. The objective is to clarify the knowledge of the molecular mechanisms of the peptide activation on FX, the role of the Gla domain of the serine protease Fa and the variant resistant to direct oral anticoagulants (DOACs) that regulate the assembly of enzyme-cofactor complexes, complexes leading to blood clotting. In this thesis is studied 1/ the role in the evolution of the length of the FX activation peptide of the venom of snake and in particular a potential role in the speed of activation of the FX and the amplification of the coagulation phenomenon. 2/ the role of the GLA domain of the serine protease FXa linked to the surface of phospholipids, which associated with factor Va converts Flla into Fil, a key step in blood clotting. Variants of these proteins exhibiting properties Enhanced procoagulants can be found in nature, with, as an example most strikingly, the FVa-Xa proteins expressed in common snake venom Australian Pseudonaja textilis
Miladi, Baligh. "Développement d’outils moléculaires de production et de purification de protéines recombinantes par suivi en temps réel." Thesis, Cergy-Pontoise, 2011. http://www.theses.fr/2011CERG0533/document.
Full textIn recent years, the need for recombinant proteins has substantially increased in various bio-industry activities. However, actual recombinant processes are still limited by the lack of markers allowing real-time expression and purification monitoring of target proteins, by inclusion bodies formation and by low quality of purity of the products. To overcome these difficulties, we have developed a new process for production and purification of recombinant proteins in Escherichia coli. The method combines the use of a multifunctional expression cassette, termed Multitags and an immobilized modified TEV protease on a streptavidin matrix. The Multitags contains, its N-terminus, two affinity purification tags (10xHis and SBP) and as a marker tag, the heme-binding domain of cytochrome b5 followed by the TEV cleavage site. Using two model proteins (MyRIP and Pfu DNA polymerase), we have demonstrated the visual and the quantitative monitoring capability of the cytochrome b5 during the expression and purification steps. When expressed in E. coli KRX more than 90% of both fusion proteins were produced in a soluble form. In addition, high purity (99%) of Multitags-MyRIP and Multitags-Pfu was achieved after two consecutive affinity purification steps using the dual affinity tag. We also produced the wild-type and the S219V mutant TEV proteases fused to the Streptag II affinity sequence and realized their affinity immobilization on a streptavidin-agarose matrix. The characterization of the proteolytic columns and their application to the recombinant model proteins demonstrated the advantage of this immobilization method in terms of retaining activities, enzyme stabilities, possibility of reuse and simplification of the cleavage downstream steps.In conclusion, this study allowed the development and the validation of innovative tools for expression and purification of recombinant proteins
Girard, Loïc. "Expression d'une protéine recombinante humaine dans des cellules végétales :le CD14." Rennes 1, 2003. http://www.theses.fr/2003REN10108.
Full textByrne, Deborah. "Du gène à la protéine : une approche rationnelle pour concevoir des expériences d'expression des protéines recombinantes." Thesis, Aix-Marseille 2, 2011. http://www.theses.fr/2011AIX22127.
Full textDifficult to express proteins: a bottleneck for most biologists. I have chosen to use Acanthamoeba polyphaga Mimivirus as my study model. This giant dsDNA virus possesses post-translationally modified proteins, multi-protein structures and enzyme pathways never before seen in a virus, which makes it ideal for refractory studies. The ultimate goal of my thesis was to produce the capsid proteins of Mimivirus. The role of the capsid protein in the assembly of the viral particle, its infectivity, and molecular features are of great importance. To go from gene to protein, I participated in the comprehension of what governs the post-transcriptional termination in Mimivirus and equally participated in the global analysis of the transcriptome during the infectious cycle of Acanthamoeba by Mimivirus. We have shown that the Mimivirus transcripts are systematically polyadenylated in the regions forming a stem-loop secondary structure; even when a canonical poyadenylation signal is absent We concluded that Mimivirus polyadenylation obeys a strict “Hairpin rule”. Moreover, the transcriptomic study revealed three distinct temporal phases: early, intermediate and late. The capsid transcripts are all expressed during the late phase but their expression profiles are not superimposable. The transcriptomic data also revealed the presence of several Mimivirus glycosyltransferases in the late temporal phase, concomitant with the capsid proteins. The expression data gathered throughout my thesis has contributed to the rational design of a protein production experiment to produce the major capsid protein and its three paralogs in eukaryotic systems
Roux, Lauriane. "Développement et validation d’un modèle cellulaire de kératopathie associée à l’aniridie." Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCC276.
Full textAniridia is a rare panocular disease mainly due to PAX6 heterozygous mutations. PAX6 is the master gene of the eye development and it controls also the corneal homeostasis maintenance. Aniridia is characterized by an iris hypo/aplasia, retina and lens defects. All the aniridia patients will also develop an aniridia-related keratopathy (ARK) leading to a progressive corneal opacification. ARK is due to a limbal stem cell deficiency and alterations of corneal epithelium and stroma functions. Unfortunately, there is currently no efficient treatment to relief the patients and no cellular model for this pathology. To remedy these lacks, CRISPR/Cas9 system was used to insert a nonsense mutation into PAX6 gene of immortalized limbal epithelial cells. The mutated cells produce less PAX6 than the wild-type and PAX6 targets gene expression was modulated. They also display a marked slow-down proliferation, clonogenicity, migration and an enhanced adhesion. Moreover, we have shown that addition of recombinant PAX6 protein fused to a cell penetrating peptide to the culture medium was able to activate the endogenous PAX6 expression and to rescue some phenotypic defects of the mutated cells. Therefore, it validates the PAX6 haploinsufficiency model and suggests that PAX6 could be involved in all the rescued functions. The mutated cells can now be used to screen potential therapeutic tools for ARK and for other defects due to low levels of PAX6
Iatmanen, Soria. "Production et caractérisation structurale et fonctionnelle de la protéine membranaire recombinante TSPO." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066561/document.
Full textTSPO previously named peripheral-type benzodiazepine receptor (PBR) is a membrane protein mostly involved in cholesterol transport from the cytosol to the matrix of mitochondria, a limiting step in steroids and bile salts biosynthesis.Production of recombinant mouse TSPO has been performed by plasmid expression in Escherichia coli bacteria. Purification has been obtained by immobilized affinity chromatography (IMAC) using polyhistidine tag encoded by recombinant gene. Various membranous mimetic environments such as detergents, lysoderivates, lipids have been tested from structural and functional point of view. Among tested detergents, dodecyl phosphocholine (DPC) has permitted the best protein refolding. The presence of lysoderivate (LMPE) or phospholipids (DMPC/DMPE) increased protein stability. Binding of TSPO high affinity ligands (PK 11195, cholesterol, protoporphyrin IX) has been measured in different conditions studied by biochemical and biophysical techniques. Three structural approaches (EM, XR and NMR) have been performed after optimization of production conditions and protein stabilization. Results gained have been discussed in line with TSPO atomic structure published within these last months. In parallel with structural studies, functional measurements have been carried out by site directed mutagenesis in order to gain data on binding site of PK 11195. These data have been faced with recently published TSPO atomic structure stabilized with this ligand and enabled to propose functional implication of mutated amino acids. Transport mechanism of cholesterol by TSPO is discussed
Bransi, Ali. "Caractérisation fonctionnelle et structurale d'un homologue phagique de la protéine humaine RAD52." Thesis, Université Laval, 2009. http://www.theses.ulaval.ca/2009/26338/26338.pdf.
Full textBen, Rached Fathia. "Etude de la protéine Rab7 de Plasmodium." Paris 7, 2011. http://www.theses.fr/2011PA077123.
Full textDuring its life cycle P. Falciparum, the causative organism of malaria, invades red blood cells leading to the specific symptoms of the disease. Its intracellular localization prompts the parasite to utilize the vesicular transport machinery in order to import nutrients that are essential for its development and to export degraded metabolites. In the present study we were interested in the role of the GPTase Rab7, which represents a major component of the vesicular transport pathway. For the first time, we demonstrated that inactivation of the rab1 gene is lethal to the parasite during its erythrocytic stage. Rab7 and Atg8 (autophagosomal marker) proteins colocalize with P. Falciparum suggesting a potential role for Rab7 during autophagy, a process that is important for thé multiple cellular transformations being undergone by the parasite throughout its development. Furthermore, we took advantage of the S. Cerevisiae database to design a Rab protein interactome for P. Falciparum. This interactome was validated in vitro and in vivo by corroborating the interaction between Rab7 and PKA-C, the corresponding subunit of PKA that is involved in cAMP-dependent signaling pathways. Finally, we showed that in vitro phosphorylation of Rab7 by PKA-C occurs at its serine 72 residue. A profound understanding of the mechanisms associated with vesicular trafficking in the parasite cell and characterization of the role of Rab7 might contribute to the battle against malaria whereas drug-induced inhibition of interactions with Rab7 could represent a method of choice
Books on the topic "Recombinant protéique"
(Editor), Juan A. Asenjo, and Barbara A. Andrews (Editor), eds. Recombinant DNA Biotechnology III: The Integration of Biological and Engineering Sciences (Annals of the New York Academy of Sciences). New York Academy of Sciences, 1996.
Find full text(Editor), Juan A. Asenjo, and Barbara A. Andrews (Editor), eds. Recombinant DNA Biotechnology III: The Integration of Biological and Engineering Sciences (Annals of the New York Academy of Sciences). New York Academy of Sciences, 1996.
Find full textRecombinant DNA biotechnology III: The integration of biological and engineering sciences. New York, N.Y: New York Academy of Sciences, 1996.
Find full text