BM and peritoneal cell analysis. BM (A-B) and peritoneal (C) cells from GIMAP1^fl/flhCD2-iCre⁻ and GIMAP1^fl/flhCD2-iCre⁺ mice were stained for flow cytometric analysis to identify B-lineage subsets. (A) Representative FACS plots for each genotype. The numbers given inside the component panels in A are the percentages of lymphoctye events contained within the indicated gates. (B) Mean numbers (± SD) of B-lineage subsets in BM (■ indicates GIMAP1^fl/flhCD2-iCre⁻,n = 6; □, GIMAP1^fl/flhCD2-iCre⁺, n = 6). (C) Mean numbers (± SD) of lymphocyte populations in peritoneum (■ indicates GIMAP1^fl/flhCD2-iCre⁻, n = 6; □, GIMAP1^fl/flhCD2-iCre⁺, n = 4). *P < .05 (unpaired 2-tailed Student t test).