ERBB2 and breast cancer: In the current study, we investigated TIMAP protein expression in 159 breast cancer tissue samples categorized into the following subtypes; Human epidermal growth factor receptor 2 (HER2)-only, Luminal A, Luminal B, and triple negative, by immunohistochemistry (IHC) using tissue microarray (TMA) and correlated its protein expression with different clinicopathological features and overall survival rate.