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
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
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