Fig. 1.
RP-HPLC separation profile of HLA-A2 ligands from platelets.
HLA-A2 molecules were precipitated with BB7.2 specific MoAb, and ligands extracted as described in Materials and methods. Optical densities (OD) at 214 nm (peptide bonds) and at 280 nm (aromatic side chains) are shown for 1 representative experiment of 4.