KLRG1 and infection: Cells with inflationary specificities, whether measured by tetramer staining (Figure 5A) or by their ability to produce IFN-γ upon stimulation (Figure 5B) were phenotypically similar in all B6 mice regardless of the virus used for infection, with the majority of m139, M38- and IE3-specific cells expressing high levels of the inhibitory molecule KLRG-1 and low levels of the IL-7Rα chain (CD127) and co-stimulatory molecule CD27 (Figure 5 and data not shown).