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Residue usage among A*68:01 ligands longer than octamers. A, percent residue frequencies (% RF) and B, deviation relative to the mean frequency in the human proteome (DMP) among 778 A*68:01 ligands ranging from 9 to 16 residues were determined at positions (P)1, P2, P3, PC-2, and PC. At each position the % RF and DMP values of the predominant residues is highlighted.
