TP53 and breast cancer: Using the 24,346 genes detected in our analysis, gene expression clustering and principal component analysis showed that UT and U belonged to distinct clusters, with UN clustered across UT and U (Figure 2F and Supplementary Figure S3D)18 When each sample was classified into basal, luminal, and p53‐like subtypes using the previously reported gene set27 UT exhibited a basal type similar to that of the previously reported BC model(Figure 2G).27