TP53 and tongue cancer: As a tongue cancer cell line, SAS appears to be suitable to examine the apoptotic function of ELAS1 because it harbors the WT p53-S46 residue, although it has an E336X (X means a stop codon) mutation, generating a truncated p53 protein, according to the mutation list in the TP53 website (http://p53.free.fr/Database/Cancer_cell_lines/p53_cell_lines.html).