MAP2K4 and triple-negative breast carcinoma: LumA, luminal A; LumB, luminal B; HER2, human epidermal growth factor receptor 2; TNBC, triple-negative breast cancer; MAP3K1, mitogen-activated protein kinase kinase kinase 1; MAP2K4, mitogen-activated protein kinase kinase 4; PPM1D, protein phosphatase Mg2+/Mn2+ dependent 1D (WIP1); LMTK3, lemur tyrosine kinase 3; TGFB1, transforming growth factor beta 1; TP53, tumor protein p53.