| MHC and T cell interactions |
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Figure 1: Interactions between Class I MHC molecule and Tc; and Class II MHC molecule and TH |
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Courtesy of Biology, 5th edition |
| CD4 and CD8 interactions |
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Figure 2: CD4 or CD8 has affinity for class I or II MHC molecules. When helper or cytotoxic T cells bind to APCs, CD4 or CD8 helps the binding interaction. |
