Fig. 3

Unsupervised clustering and PI3K signature score based on the RBN dataset. Heatmap depicting protein levels after unsupervised hierarchical clustering of 826 TCGA samples plus 6 baseline SU2C samples and 128 antibodies. Protein levels are indicated on a low-to-high scale (green-black-red). Annotation bars include the PAM50 intrinsic subtype classification. The PI3K score is shown in the lower panel. SU2C samples (black) are located in close proximity to triple-negative breast cancer samples from TCGA (red)