TP53 and melanoma: The melanoma tumors and melanoma cell lines studied here showed the G to C transversion at position 11827 of TP53 intron 2, previously described by Oliva et al [24] in four melanoma tumors (M4, M7, M38, and M53), and three new single nucleotide polymorphisms: C to T transition at position 11701 of TP53 intron 1; C insertion at position 11818 of TP53 intron 2; and C insertion at position 11875 of TP53 intron 2 (Figure 1).