For tumours LS3x, LS21, LS43 and MS8x, the genes ATF6 and DUSP12 showed the highest amplification level in general, 3–5 fold in LS3x and 5–10 fold in LS21 and LS43 (except ATF6), and particularly high copy numbers (>10 fold) in MS8x. The gene discussed is DUSP12; the disease is neoplasm.