Extent, frequency and patterns of CNAs on chromosome 17 in HER2+ BC. Regions of loss are shown in green, normal in black, gain in dark red, amplification in red, and high-level amplification in white for each sample (row). Frequency of gain (red) and loss (green) across all 200 tumors are shown for chromosome 17. Read boxes, above the cytoband bar, indicate GISTIC regions of gain and green boxes GISTIC regions of loss. GISTIC regions with recurrent amplifications that are more frequent in HER2+ BC compared to HER2- BC are named. Vertical purple line corresponds to centromer limit.