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FCAR / CD89 is a member of the immunoglobulin gene superfamily and encodes a receptor for the Fc region of IgA. The receptor is a transmembrane glycoprotein present on the surface of myeloid lineage cells such as neutrophils, monocytes, macrophages, and eosinophils, where it mediates immunologic responses to pathogens. It interacts with IgA-opsonized targets and triggers several immunologic defense processes, including phagocytosis, antibody-dependent cell-mediated cytotoxicity, and stimulation of the release of inflammatory mediators. Multiple alternatively spliced transcript variants encoding different isoforms have been described for this gene.
Gene Name: | Fc fragment of IgA, receptor for |
Family/Subfamily: | Immunoglobulin , not assigned-Immunoglobulin |
Synonyms: | FCAR, CD89 antigen, Fc alpha receptor, IgA Fc receptor, CD89 |
Target Sequences: | NM_002000 NP_001991.1 P24071 |
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