Indeed, the three HNSCC cell lines were proven to have deleterious mutations in the p53 gene, as it was previously reported for UT-SCC-2 (ref. 30) or as determined by us in the case of the UT-SCC-38 and UT-SCC-42B (Supplementary Fig. 5d). The gene discussed is TP53; the disease is head and neck squamous cell carcinoma.