Comparative analysis of h tid and HER-2 expression in breast and non breast tumors. The detection of htid was performed as described in the legend to Figure 1. The ErbB-2 oncogene was detected using a monoclonal anti ErbB-2 antibody (AO485). Weak htid expression is detectable in HER-2 over expressing breast tumors of the luminal B (A, B) and HER-2 (C, D) subtype as well as in a renal clear cell carcinoma (E, F). (Original magnification: 250×).