Academic literature on the topic 'Alphareps'
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Journal articles on the topic "Alphareps"
Guellouz, Asma, Marie Valerio-Lepiniec, Agathe Urvoas, Anne Chevrel, Marc Graille, Zaineb Fourati-Kammoun, Michel Desmadril, Herman van Tilbeurgh, and Philippe Minard. "Selection of Specific Protein Binders for Pre-Defined Targets from an Optimized Library of Artificial Helicoidal Repeat Proteins (alphaRep)." PLoS ONE 8, no. 8 (August 27, 2013): e71512. http://dx.doi.org/10.1371/journal.pone.0071512.
Full textMalcher, Kay. "Elisabeth Lienert, Die ‚historische‘ Dietrichepik. Untersuchungen zu ‚Dietrichs Flucht‘, ‚Rabenschlacht‘ und ‚Alpharts Tod‘." Arbitrium 31, no. 1 (January 2013). http://dx.doi.org/10.1515/arb-2013-0018.
Full textMüller, Stephan. "Dietrichs Flucht. Textgeschichtliche Ausgabe, hg. v. Elisabeth Lienert u. Gertrud Beck, Rabenschlacht. Textgeschichtliche Ausgabe, hg. v. Elisabeth Lienert u. Dorit Wolter, Alpharts Tod. Dietrich und Wenezlan, hg. v. Elisabeth Lienert und Viola Meyer." Beiträge zur Geschichte der deutschen Sprache und Literatur (PBB) 133, no. 2 (January 2011). http://dx.doi.org/10.1515/bgsl.2011.044.
Full textMüller, Stephan. "Dietrichs Flucht. Textgeschichtliche Ausgabe, hg. v. Elisabeth Lienert u. Gertrud Beck; Rabenschlacht. Textgeschichtliche Ausgabe, hg. v. Elisabeth Lienert u. Dorit Wolter; Alpharts Tod. Dietrich und Wenezlan, hg. v. Elisabeth Lienert u. Viola Meyer." Beiträge zur Geschichte der deutschen Sprache und Literatur (PBB) 133, no. 3-4 (January 2011). http://dx.doi.org/10.1515/bgsl.2011.070.
Full textDissertations / Theses on the topic "Alphareps"
Ruedas, Rémi. "Méthodologie pour l'obtention de structures par cryo-EM de complexes anticorps-antigènes appliquée aux deux protéines sHER2 et NS4." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASQ059.
Full textSingle particle analysis (SPA) from cryogenic transmission electron microscopy (Cryo-EM) nowadays allows structural analysis in the native state of a broad range of proteins and macromolecular complexes. It is particularly attractive for complexes for which structure prediction remains intractable, such as antibody-antigen complexes. In the second chapter of this manuscript, we cover several validation points at the pre-microscope, in-microscope and post-microscope stages for the studies of such complexes by cryo-EM. We detail a wide range of biophysical analyses allowing a detailed description of the biochemical properties of samples in solution. Following these analyses, we discuss the optimal approach for preparing and screening Cryo-EM grids. The last part is devoted to data processing, with exhaustive analyses of the effect of the grid material on the sample. We also present a practical application of current software to deal with continuous conformational heterogeneity. This part shows how we manage to obtain the first experimental map bellow 3 Angstroms resolution of the flexible ternary complex "HTP" between the human epidermal growth factor receptor 2 (HER2) and the antigen-binding fragments (Fab) of two distinct therapeutic antibodies, pertuzumab and trastuzumab. Our map, which is better defined than previous ones, has brought to light a previously neglected interaction that could explain the synergistic effect of the antibodies.The third chapter takes up the approach developed with the HTP complex by applying it to the non-structural norovirus protein NS4. This section provides the first comprehensive results on the biochemical properties of the NS4 protein. It also outlines the limitations of using monoclonal antibodies as structural analysis tools. Finally, it shows how we have succeeded in obtaining a diversified catalogue of artificial proteins "alpharep" targeting NS4, as well as the first possible applications
Hadpech, Sudarat. "Nouveaux agents antiviraux dérivés de protéines cellulaires à motifs répétés et ciblant l’assemblage du VIH." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1139/document.
Full textHIV-1 infection is a long-term disease which required a long-life treatment. Besides the standard HAART regiment, HIV gene therapy is a promising alternative strategy which give rise to hope for the better HIV-1 treatment. Protein therapeutics is one another technique that represent high impact results in curing various types of disease. It is already become a significant part of current medical treatments. In this study we first designed aRep, a non-immunoglobulin scaffold protein which target two domains of HIV-1 Pr55Gag, SP1-NC and investigated their roles as an intracellular therapeutic agents. Phage display technology was used for the specific isolation of aRep against a critical C-terminal region of the HIV-1 Pr55Gag precursor from a large and diverse library. The antiviral activity of these two Pr55Gag binders was investigated using different cell systems. Two aRep scaffolds aRep4E3 and aRep9A8 were isolated and characterized. aRep4E3 contains 7 repeat motifs (32 kDa), meanwhile aRep9A8 has 6 repeat motifs (28 kDa). These two scaffold molecules found to be able to display antiviral effects on the late stage of HIV-1 replication, by reducing and delaying the viral progeny production. The difference in the molecular mechanism was observed between these two aRep proteins: aRep4E3 mainly interferes with the packaging of the viral genome, meanwhile aRep9A8 interferes with the proteolytic processing of Gag, and performs as a protease inhibitor to prevent the PR cleavage required for the production of newly infectious mature virus. Interestingly, aRep9A8 is able to survive in the chronical HIV-1 infected cells up to D38 pi with the low level of HIV-1 replication. Taken together, results suggested that aRep, a new type of scaffold protein could serve as a promising alternative agent in protein therapy, not only the HIV-1 infection but also the others pathogens or disorders
Furnon, Wilhelm. "La protéine non-structurale NS1 du virus West Nile : étude fonctionnelle et cible potentielle de nouvelles molécules antivirales." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1008/document.
Full textAmong emerging mosquito-borne viruses (arboviruses), flaviviruses like Dengue, Zika and West Nile virus (WNV) are very often involved in outbreaks. WNV causes several neuroinvasive diseases, which can be lethal, in humans and horses each year. This virus is a threat for both, human and animal public health. Furthermore, there is no human vaccine currently or any specific antiviral treatments against WNV.Among viral factors which are essential for flavivirus infection, the nonstructural glycoprotein NS1 is a multifunctional protein. The secreted form sNS1, is released in the extracellular medium from infected cells and is strongly involved in immune system dysregulation. The functions of sNS1 play roles in immune escape and, paradoxically, in pathogenesis which is observed in severe forms of the disease. Because most of this data are about Dengue Virus, we would like to study, in vitro, functional properties of the sNS1WNV during infection of epithelial, glial and neuronal mammalian cells. Based on the high sNS1 protein structure similarities among flaviviruses, our hypothesis suggests a role of sNS1WNV in neuroinvasive infections.The sNS1WNV protein doesn’t seem to modulate viral infection steps. However, it is involved in actin cytoskeleton remodeling in epithelial cells. sNS1WNV is also involved in the activation of antiviral response pathways in non-infected neuronal cells. On the other hand, by targeting sNS1 and envelope protein E of WNV, we performed a screening of aRep molecules (artificial proteins with alphahelicoïdal repeats) and isolated ligands with high affinity for these viral factors. Because this new type of molecules is able to specifically bind to sNS1 and E, they have potential to be used for the development of new diagnostic tools and antiviral therapeutic agents
Chevrel, Anne. "Ingénierie d’une ossature à motifs structuraux répétés par évolution dirigée : développements et applications d’un nouvel outil de reconnaissance moléculaire." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA114842.
Full textImmunoglobulin fold is not the only basis for specific recognition proteins. Other adaptive immunity systems exist and many other proteins are also able to mediate specific high-affinity interactions. These are interesting scaffolds to generate alternative binding molecules.A new family of artificial proteins, named AlphaRep, based on HEAT repeat proteins containing an alpha-helical repeated motif, was designed in the laboratory. The repeated motif, first identified in a thermostable archae protein of unknown function was refined and idealized using a consensus design strategy. A library of artificial proteins based on this design was then constructed. All proteins from this library share the same general fold but differ both in the number of repeats and in a set of five highly randomized positions per repeat. The randomized side chains are located on the outside surface of the second helix. Sequences from this library are efficiently expressed as soluble, folded and very stable proteins (50-100 mg. L-1 of culture, Tm > 70°C).The work presented in this manuscript is focused on the use of those new synthetic proteins as molecular recognition tools. Then, different applications have been developed.In a first part, binders with high affinity for the green fluorescent protein were selected by phage display. Complexes were characterized. Affinity between partners was measured and structures of two of those complexes containing a specific AlphaRep and the protein target were solved by X-ray crystallography. Thanks to this model target, it was demonstrated that AlphaReps could be used in living cells for the specific recognition of the protein they have been selected for. AlphaReps have also been developed as a diagnostic tool to detect the membrane protein FSHr (Follicle stimulating Hormone receptor), shown to be overexpressed in various tumors. In this project, selections on entire cells have been performed, showing the limit of the selections approaches with complex targets.The second part of this work focused on engineering and evolutions of AlphaRep proteins. The insertion of randomized residues at specific positions in the last motif (C-cap) was validated. An innovative approach of modular shuffling, adjusted to the AlphaRep scaffold, was assessed. Limitations of this approach to perform affinity maturation of AlphaReps could then be understood. Finally, the AlphaRep Library was transferred to a PCA (Protein Fragment Complementation Assay) vector using the split DHFR (Dihydrofolate Reductase) as reporter protein. With this new selection system, specific Alphareps could be selected for protein targets not suitable for phage display selection. A cis-fusion strategy was employed to express the AlphaRep fused to its partner in order to increase the stability and solubility of the target as well as helping for its crystallogenesis. This approach, combined with the PCA selection, was successful to obtain crystals of the ComD protein (unstable protein), shown here as an example of success for this new method.AlphaReps are thus artificial proteins, among which specific binders can be isolated for various targets, showing a strong potential for a large range of applications from crystallogenesis helpers to in vivo molecular recognition tools
Chang, Yuan-Chia, and 張元嘉. "A User Study of AlphaRead: Support Unambiguous Referencing in Remote Collaboration with Readable Object Annotation." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/h8je5c.
Full text國立清華大學
資訊系統與應用研究所
105
As experts and expertise are increasingly distributed across distance, remote collaboration on physical tasks also becomes popular. Physical collaboration requires collaborators to produce and resolve references to physical objects unambiguously. We present a novel annotation system called AlphaRead that enables users to add and see readable annotations of physical objects, such as labels in letter, in a dynamic video-mediated workspace. Explicit support for object readability can help people coordinate language and vision for collaboration, and allow them to directly read out object labels as a way to make unambiguous references. Object readability as a resource of linguistic references can reduce the ambiguity and complexity associated with traditional methods of referential expressions such as deictic pronouns (“this” or “that”) or descriptions of object attributes. In a video- mediated collaboration study, by making objects referable with readable labels, we improved the communication efficiency over the alternative options of using raw video or video with non-readable annotations to collaborate. We also identified patterns of language behaviors that people exhibited with readable labels and discussed the implications to the design of collaboration support tools.
Books on the topic "Alphareps"
Lienert, Elisabeth, and Viola Meyer, eds. Alpharts Tod. Dietrich und Wenezlan. Berlin, Boston: DE GRUYTER, 2007. http://dx.doi.org/10.1515/9783110947212.
Full textBern, Dietrich von, ed. Die "historische" Dietrichepik: Untersuchungen zu "Dietrichs Flucht", "Rabenschlacht" und "Alpharts Tod". Berlin: De Gruyter, 2010.
Find full textBrooks, Mike. Alpharius: Head of the Hydra. Games Workshop, 2021.
Find full textMeyer, Viola, and Elisabeth Lienert. Alpharts Tod. Dietrich und Wenezlan. de Gruyter GmbH, Walter, 2012.
Find full textAlpharts Tod: Dietrichs Flucht; Rabenschlacht. Creative Media Partners, LLC, 2022.
Find full textAlpharts Tod ; Dietrich und Wenezlan. Tübingen: Niemeyer, 2007.
Find full textVogler, Heinrich Der. Alpharts Tod: Dietrichs Flucht Rabenschlacht. Creative Media Partners, LLC, 2018.
Find full textVogler, Heinrich Der. Alpharts Tod: Dietrichs Flucht; Rabenschlacht. Franklin Classics Trade Press, 2018.
Find full textAlpharts Tod: Dietrichs Flucht ; Rabenschlacht. Franklin Classics, 2018.
Find full textVogler, Heinrich Der. Alpharts Tod: Dietrichs Flucht; Rabenschlacht. Franklin Classics Trade Press, 2018.
Find full textConference papers on the topic "Alphareps"
Chang, Yuan-Chia, Hao-Chuan Wang, Hung-kuo Chu, Shung-Ying Lin, and Shuo-Ping Wang. "AlphaRead." In CSCW '17: Computer Supported Cooperative Work and Social Computing. New York, NY, USA: ACM, 2017. http://dx.doi.org/10.1145/2998181.2998258.
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