The GBM cell line, SF-539, expresses mutant p53, has a modal number at 88 chromosomes and divides every 35 h, whereas the GBM cell line, SNB-19, expresses wild type p53, has a modal number of 61 chromosomes and similarly divide every 35 h (Additional file 1: Fig. S1d). Here, TP53 is linked to glioblastoma.