PPM1D and cancer: Search for the cancer cell lines harboring the truncating mutations in exon 6 of the PPM1D in COSMIC database (https://cancer.sanger.ac.uk/cosmic; v87) revealed that besides HCT116 cells with c.1349delT (p.L450*), similar mutations are present in SNU175 (c.1528_1529insA; p.N512Kfs*16) and CL-34 (c.1714C>T; p.R572*) cells derived from colon adenocarcinoma55.