An antibody specific for PDIA4 co-immunoprecipitated TAX1BP1, while an antibody specific for TAX1BP1 co-immunoprecipitated PDIA4, according to our findings, PDIA4 acted as a binding partner for TAX1BP1 in TNBC cells and cancer specimens (Fig. 6B and C). The gene discussed is PDIA4; the disease is cancer.