RNA isolated from peripheral blood of patients with SLE analyzed with qRT-PCR revealed that the level of MYSM1 and miR-150 was lower in FLT3+ B cells than in FLT3− B cells (Figure 4C) suggesting that FLT3 elevation was due to a decrease in MYSM1. The gene discussed is FLT3; the disease is systemic lupus erythematosus.