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Structure-based sequence alignment of N*01801 and eight different types of MHC I molecules. Cylinders indicate α-helices, and black arrows indicate β-strands. Residues highlighted in red are completely conserved, and boxed residues are highly (>80%) conserved. Residues that play a critical role in peptide presentation are asterisked (residue 73, highlighted in yellow, and residue 167, highlighted in cyan). The sequence alignment was generated with Clustal X (56) and ESPript (24).
