STEAP2 (Six-Transmembrane Epithelial Antigen of the Prostate 2): STEAP2 is a transmembrane protein involved in cellular iron homeostasis. It helps regulate the transport of iron across cell membranes, influencing iron availability for various cellular processes. STEAP2’s function in iron regulation and its potential connection to iron-related disorders make it a significant focus in research on iron metabolism and cellular physiology.