ERBB2 and triple-negative breast carcinoma: We find that in basal-OVCA, a number of proteins show significantly different abundance patterns that are typically associated with the basal subtype; this includes lower abundance of the three markers for ‘triple-negative’ breast cancer (ERα, PR and pHER2; total HER2 is lower among basal-OVCA, but not significantly so), as well as higher abundance of several cyclins, including CyclinE1 and CyclinB1, and higher activation of several PI3K pathway proteins, including total S6 and two forms of p4EBP1 (Fig. 4B) as well as FoxM1.