The peptide length specificity of some HLA class I alleles is very broad and includes peptides of up to 25 amino acids in length - Bell, Melissa J.; Burrows, Jacqueline M.; Brennan, Rebekah; Miles, John J.; Tellam, Judy; McCluskey, James; Rossjohn, Jamie; Khanna, Rajiv; Burrows, Scott R. (Molecular Immunology, 2009)