Regarding anti-Chr Ab (Fig. 5D–F), correlation with disease activity was restricted to the DP + group (RmCorr = 0.38, p = 2.8x10−60) and for this group correlation with SLE-biomarkers included the ANA titer on HEp-2 cells (RmCorr = 0.42, p = 6.2x10−72) and anti-Sm/SmRNP/RNP-A Ab (0.31<RmCorr<0.33). Here, BTG3 is linked to systemic lupus erythematosus.