To identify GLK gene variants in patients with SLE, we isolated genomic DNAs of peripheral blood mononuclear cells (PBMCs) from 101 patients with SLE and 163 individuals without SLE (6 healthy controls (HCs) and 157 family members of patients with SLE) (Cohort #1, Taichung Veterans General Hospital, located in Taichung City in central Taiwan; online supplemental table S1). The gene discussed is MAP4K3; the disease is systemic lupus erythematosus.