Which of the following molecules contain ITAM in their molecular cytoplasmic regions?
A. CD3, CD4
B. CD3, CTLA-4
CD3, MHC
D. CD3, Igα/Igβ
E. CTLA-4, Igα/Igβ
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The antigen-binding cleft of MHC class I molecule locates in
A. α1 and β1 domains
B. α1 and α2 domains
C. β1 and β2 domains
D. α2 and α3 domains
E. α2 and β2 domains
The properties of cytokine DO NOT include
A. The cytokines play roles mainly by autocrine and paracrine patterns.
B. The cytokine’s secretion is a self-limited event.
C. One cytokine may be synthesized by several types of cells.
D. The cytokines initiate their effects by binding to their receptors.
E. Multiple cytokines may mediate the same biological effects.
Which of the following statements is correct about Ag?
A. TD-Ags only contain T epitope.
B. TI-Ags may cause cellular immune response and humoral immune response.
C. TI-Ags may induce immune memory.
D. TI-Ags can stimulate the production of IgG and IgM.
E. There is MHC restriction in the immune response to TD-Ags.
Which class of Ig has secretory piece?
A. IgG
B. IgM
C. SIgA
D. IgE
E. IgD
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