The growth rate data of low‐MITF cells (SK‐MEL‐2, Dor and A375) were completely mixed with the data of high‐MITF cell lines (MeWo, 501mel, SK‐MEL‐28), indicating that even low level of MITF can sustain high proliferation rate in some melanomas, apparently dependent on the cellular context. The gene discussed is MITF; the disease is melanoma.