PIK3CD and breast cancer: High-throughput mutation analysis identified novel somatic mutations affecting p110γ (N66K, D161E, R178L, S348I, K364N, T503M, R542W, E602V, and E740K) and p110δ (V397A) across various tumor types, including breast cancer, LC, ovarian cancer, and prostate cancer (Kan et al., 2010).