A Monomeric Chicken IgY Receptor Binds IgY with 2:1 Stoichiometry
نویسندگان
چکیده
منابع مشابه
The chicken yolk sac IgY receptor, a mammalian mannose receptor family member, transcytoses IgY across polarized epithelial cells.
In mammals the transfer of passive immunity from mother to young is mediated by the MHC-related receptor FcRn, which transports maternal IgG across epithelial cell barriers. In birds, maternal IgY in egg yolk is transferred across the yolk sac to passively immunize chicks during gestation and early independent life. The chicken yolk sac IgY receptor (FcRY) is the ortholog of the mammalian phosp...
متن کاملThe chicken leukocyte receptor complex encodes a primordial, activating, high-affinity IgY Fc receptor.
Fc receptors are key players of the immune system that link the fine specificity of immunoglobulins and innate effector responses. Here, we describe a nonmammalian Fcgamma receptor, CHIR-AB1, a member of the leukocyte receptor complex, that binds IgY with high affinity with its single Ig domain. It is expressed on immature and mature B lymphocytes, monocytes, macrophages, and natural killer cel...
متن کاملChicken IgY binds its receptor at the CH3/CH4 interface similarly as the human IgA: Fc alpha RI interaction.
Chicken IgY, the ancestral form of mammalian IgE and IgG, is recognized by the high-affinity FcY receptor CHIR-AB1, a member of the leukocyte receptor family. In this study, we have characterized the receptor ligand interaction site by consecutive truncations of the Fcv IgY domains and mutational analyses of selected residues. Using several fusion proteins that linked the human Cgamma2 and Cgam...
متن کاملProduction, characterization and application of monoclonal antibodies against chicken IgY
Monoclonal antibodies (Mabs) were produced against chicken IgY purified from egg yolks. Purity of the IgY was established using immunoelectrophoresis and reducing and non-reducing polyacrylamide gel electrophoresis. Five stable hybrid clones were characterized and Mabs, all belonging to IgG1 isotype, were found to bind to the IgY heavy chain in Western blots. These clones did not cross-react wi...
متن کاملIgY-technology: application and trends
The IgY-technology stand for the immunisation of chickens and the extraction of specific IgY antibodies (Ab) from egg yolk. Due to the non-invasive Ab isolation IgY-technology is internationally accepted as so-called alternative method. Despite of the aspect of animal welfare Ab production in chicken offers also outstanding economical advantages. i) purchase of chickens is much more cheep than ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 2009
ISSN: 0021-9258
DOI: 10.1074/jbc.m109.020263