Notably, the top five clones for each mouse (which ranged from comprising 3.7 to 9.8% of the GP66-specific pool) accounted for ~40–45% of all cells in the dataset (Figure 1A and C), demonstrating that the CD4+ T cell response during LCMV Cl13 infection is dominated by a few large clones. The gene discussed is CD4; the disease is infection.