PIK3CA and cancer: Several cancer-associated genes—Fibroblast Growth Factor Receptor-3 (FGFR3), phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) and N-ras proto-oncogene (NRAS) are identified as mutant in HT1197 when compared to HT137642.