Layout of the TP53 low density DNA microarray. (A): Names and alignment of stacking oligonucleotides and probes to their respective synthetic wild type target sequence. Bold letters correspond to the nucleotide change in DNA sequence due to the point mutations. (B): Layout of the probe array on the glass slide. The probes were applied to the slide in triplicate as depicted at the top. The numbers correspond to the probes in Table 1.