Gene expression profiles of human CD11b+ and CD11b− B1 cell subsets. (A) Top 50 overexpressed genes discriminating CD11b− B1 cells from CD11b+, naïve, and memory B cells. Sec_B cells, CD11b− B1 cells. Orc_B cells, CD11b+ B1 cells. (B) Top 106 overexpressed genes discriminating CD11b+ B1 cells from CD11b−, naïve, and memory B cells. (C) Top 73 underexpressed genes discriminating CD11b+ B1 cells from CD11b−, naïve, and memory B cells. The total number of genes displayed, which represent an unbiased list of genes according to their ranking order in the comparison, was selected to include most of the discriminating genes selected by Griffin and Rothstein in the heat map in Fig. 2 of their paper. A classical red/green heat map display is used for overexpressed/under-expressed genes.