Our data was derived from the studies done on two cell lines (mouse melanoma B16F10 and rat hepatoma FTO) and including Hspa1b gene derived from two species (the rat Hspa1b gene was used in promoter studies, activation of the mouse Hspa1b gene was detected by microarrays in an experiment done on the mouse B16F10 cells). This evidence concerns the gene HSPA1B and melanoma.