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