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ANTIBODIES (SECERTED ANTIBODIES (IgM (Bacteria that are coated with IgM…
ANTIBODIES
SECERTED ANTIBODIES
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IgA
The secretory chain helps IgA cross layers of epithelial cells and get to the appropriate body sites (i.e., lumen of the gut)
IgE
amino acid sequence in the E chain constant region binds to a receptor (FcERI) on these cells. IgE is the only class of antibody that can bind to this receptor
Responsible for triggering allergic reactions. When the IgE on the mast cell or basophil binds an antigen, the cell degranulates and releases large amounts of histamine. Histamine causes the main symptoms of allergic responses. IgE is also the main class of immunoglobulin induced in response to infection by parasites such as intestinal worms. Worms at too big to be killed by phagocytosis. Instead, mast cell degranulation results in diarrhea and vomiting which helps to expel the worms
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