Figure 3. GL7 is expressed mainly on transitional B cells in blood during infection.

A) Gating strategy for the identification of GL7⁺ CD19⁺ B cells in peripheral blood (left), spleen (middle) and bone marrow (right). B) The number of CD19⁺ B cells expressing GL7 on different subpopulations; transitional T1 (IgM^highIgD^low), T2 (IgD^highIgM^high), naïve B cells (IgD^{intermdiate (int)}IgM^low) and isotype-switched B cells (IgM⁻IgD⁻) determined by flow cytometry. The values and error bars shown are the means and the standard errors of the mean (SEM) of 5 to 7 mice.