Among the positive samples of the HPA data, a moderate level (Staining: medium; Intensity: moderate; Quantity: > 75%) of BATF2 protein expression appeared in 5 cases, and a low level (Staining: low; Intensity: weak; Quantity: 75–25%) of BATF2 expression was shown in 2 cases (Fig. 3C-F shows the expression status of BATF2 in 4 BRCA cases). Here, BATF2 is linked to invasive breast carcinoma.