Three pairs of primers (P1, P2, and P3) for FOXM1-binding sites in RRM2 promoter and a pair of negative control primers (10 kb upstream, non-FOXM1 binding region) were designed to study the FOXM1 binding in SCLC cell lines under different experimental conditions (for details seesupplementary information). The gene discussed is RRM2; the disease is small cell lung carcinoma.