Carbamazepine-Mediated Adverse Drug Reactions: CBZ-10,11-epoxide but Not Carbamazepine Induces the Alteration of Peptides Presented by HLA-B15:02

Figure 5

Modelling of peptides bound to empty and EPX bound HLAB15:02. The homology model of HLA-B15:02 (grey) is based on the structure of HLA-B15:01 (1XR8). The peptide SQATPHSSY (blue) could be solely detected without treatment, whereas following treatment with EPX (green), the peptide VSQqKLQAEAQ (orange) was detected. (a) Top view on the PBR of the pHLA complex in the absence and presence of EPX. (b) Side view on the PBR, the alpha helix of the alpha 2 domain is not shown. (c) Surface model of peptides and EPX binding to the F pocket (colored brownish). The AAs interacting with the peptide or the drug via hydrogen bridge bonds are depicted. (d) The oxygen atom in the carboxamide moiety of EPX interacts with two AAs of the F pocket.

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