Figure 2.

An example of a multiple-epitope antigen. The ten residues with color orange are the residues of the epitope on the ubiquitin antigen (chain X) in PDB complex 3DVG, while the fourteen residues colored in forest green are the residues of the epitope on the ubiquitin antigen (chain Y) in PDB complex 3DVG.

Zhao et al. BMC Bioinformatics 2012 13(Suppl 17):S20   doi:10.1186/1471-2105-13-S17-S20