Which Immunoglobulin Isotypes (Out of IgM, IgG1, IgG2, IgG3, IgG4

question 34

Essay

Which immunoglobulin isotypes (out of IgM, IgG1, IgG2, IgG3, IgG4, IgA, IgE, and IgD) participate in (a) neutralization; (b) opsonization; (c) sensitization for killing by NK cells; (d) sensitization of mast cells; (e) activation of complement? Which isotypes (f) are transported across epithelium; (g) are transported across the placenta; (h) diffuse into extravascular sites?

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Definitions:

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