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  • Antibodies, Monoclonal/immunology  (2)
  • American Association for the Advancement of Science (AAAS)  (2)
  • Emerald
  • Wiley
  • 2005-2009  (2)
  • 1995-1999
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (2)
  • Emerald
  • Wiley
Years
  • 2005-2009  (2)
  • 1995-1999
Year
  • 1
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    Anti-inflammatory activity of human IgG4 antibodies by dynamic Fab arm exchange (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-09-18
    Description: Antibodies play a central role in immunity by forming an interface with the innate immune system and, typically, mediate proinflammatory activity. We describe a novel posttranslational modification that leads to anti-inflammatory activity of antibodies of immunoglobulin G, isotype 4 (IgG4). IgG4 antibodies are dynamic molecules that exchange Fab arms by swapping a heavy chain and attached light chain (half-molecule) with a heavy-light chain pair from another molecule, which results in bispecific antibodies. Mutagenesis studies revealed that the third constant domain is critical for this activity. The impact of IgG4 Fab arm exchange was confirmed in vivo in a rhesus monkey model with experimental autoimmune myasthenia gravis. IgG4 Fab arm exchange is suggested to be an important biological mechanism that provides the basis for the anti-inflammatory activity attributed to IgG4 antibodies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van der Neut Kolfschoten, Marijn -- Schuurman, Janine -- Losen, Mario -- Bleeker, Wim K -- Martinez-Martinez, Pilar -- Vermeulen, Ellen -- den Bleker, Tamara H -- Wiegman, Luus -- Vink, Tom -- Aarden, Lucien A -- De Baets, Marc H -- van de Winkel, Jan G J -- Aalberse, Rob C -- Parren, Paul W H I -- New York, N.Y. -- Science. 2007 Sep 14;317(5844):1554-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sanquin Research-AMC Landsteiner Laboratory, Department of Immunopathology, Plesmanlaan 125, 1066 CX Amsterdam, the Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17872445" target="_blank"〉PubMed〈/a〉
    Keywords: Allergens/immunology ; Animals ; Antibodies, Bispecific/immunology ; Antibodies, Monoclonal/immunology ; Antigens, CD20/immunology ; Antigens, Plant ; Autoantibodies/immunology ; Glycoproteins/immunology ; Humans ; Immunoglobulin Constant Regions/chemistry ; Immunoglobulin Fab Fragments/*chemistry/*immunology/metabolism ; Immunoglobulin G/*chemistry/*immunology/metabolism ; Immunoglobulin Heavy Chains ; Macaca mulatta ; Mice ; Mutation ; Myasthenia Gravis, Autoimmune, Experimental/immunology/prevention & control ; Protein Processing, Post-Translational ; Receptor, Epidermal Growth Factor/immunology ; Receptors, Cholinergic/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Crystal structure of the malaria vaccine candidate apical membrane antigen 1 (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-02-26
    Description: Apical membrane antigen 1 from Plasmodium is a leading malaria vaccine candidate. The protein is essential for host-cell invasion, but its molecular function is unknown. The crystal structure of the three domains comprising the ectoplasmic region of the antigen from P. vivax, solved at 1.8 angstrom resolution, shows that domains I and II belong to the PAN motif, which defines a superfamily of protein folds implicated in receptor binding. We also mapped the epitope of an invasion-inhibitory monoclonal antibody specific for the P. falciparum ortholog and modeled this to the structure. The location of the epitope and current knowledge on structure-function correlations for PAN domains together suggest a receptor-binding role during invasion in which domain II plays a critical part. These results are likely to aid vaccine and drug design.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pizarro, Juan Carlos -- Vulliez-Le Normand, Brigitte -- Chesne-Seck, Marie-Laure -- Collins, Christine R -- Withers-Martinez, Chrislaine -- Hackett, Fiona -- Blackman, Michael J -- Faber, Bart W -- Remarque, Edmond J -- Kocken, Clemens H M -- Thomas, Alan W -- Bentley, Graham A -- MC_U117532063/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2005 Apr 15;308(5720):408-11. Epub 2005 Feb 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Unite d'Immunologie Structurale, Centre National de la Recherche Scientifique, URA 2185, Institut Pasteur, 25 rue du Docteur Roux, 75724 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15731407" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/immunology ; Antigens, Protozoan/*chemistry/immunology ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; Epitope Mapping ; Epitopes ; Heparin/metabolism ; Malaria Vaccines ; Membrane Proteins/*chemistry/immunology ; Models, Molecular ; Molecular Sequence Data ; Plasmodium falciparum/chemistry/immunology ; Plasmodium vivax/chemistry/*immunology ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protozoan Proteins/*chemistry/immunology ; Recombinant Proteins/chemistry ; Sequence Alignment
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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