Metalloreductase STEAP1 is an enzyme that in humans is encoded by the STEAP1gene.[5]
This gene is predominantly expressed in prostate tissue, and is found to be upregulated in multiple cancer cell lines. The gene product is predicted to be a six-transmembrane protein, and was shown to be a cell surface antigen significantly expressed at cell-cell junctions.[5]
Yang D, Holt GE, Velders MP, et al. (2001). "Murine six-transmembrane epithelial antigen of the prostate, prostate stem cell antigen, and prostate-specific membrane antigen: prostate-specific cell-surface antigens highly expressed in prostate cancer of transgenic adenocarcinoma mouse prostate mice". Cancer Res. 61 (15): 5857–60. PMID11479226.