The binding area of MHC class II molecules to CD4 molecules is
A. α1 domain
B. α2 domain
C. β1 domain
D. β2 domain
E. α3 domain
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The antigen binding groove of HLA-I molecule is located in
A. α1+β1
B. α2+β2
C. α1+α2
D. α1+β2m
E. β1+β2
The HLA molecule that is closely related to ankylosing spondylitis (强直性脊柱炎) is
A. HLA-A5
B. HLA-B8
C. HLA-B7
D. HLA-B27
E. HLA-DR3
The location of HLA polymorphism is
A. Peptide binding site
B. Ig-like region
C. Transmembrane area
D. Cytoplasmic area
E. Transmembrane and cytoplasmic area
Which of the following cells express HLA class II molecules?
A. DC
B. Red blood cells
C. B cells
D. Macrophages
E. Activated T cells
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