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Essay

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In an autoimmune disorder, cells in the body come under attack from certain antibodies known as ____1_____ , and also from certain types of ____2_____ T cell that may attack specific host cells (such as insulin-producing ____3______ ____4_____ cells in the case of type I diabetes). In ____2_____ T cell responses the host cell peptides serve as ____5_____ and they are presented to T cells after they have been bound by ____6_____ proteins. ____6_____ proteins differ in their ability to bind individual peptide ____5____ and that is the primary basis for ____6____-disease associations.