Additional file 4 of Phospholipase D4 as a signature of toll-like receptor 7 or 9 signaling is expressed on blastic T-bet + B cells in systemic lupus erythematosus

Additional file 4: Supplementary figure 3. A. In addition to double negative population, PLD4+ blasts included CD27+ memory and IgD naïve and transitional populations (middle). Both compartments were further analyzed for the ratios of CD11c+, CXCR5- cells (left and right). B. The scatter plots show the correlation between the ratios of PLD4+ blasts and the serum levels of serum C3 (left) or C4 (right) in SLE patients. The gray shade area represents the 95 % confidence interval of the regression line. Spearman rank correlation coefficient (ρ) and P values are shown.