TIM-3, or T-cell immunoglobulin and mucin-domain containing-3, is a transmembrane protein that plays a significant role in regulating immune responses. This protein is a member of the TIM family, which includes other proteins like TIM-1 and TIM-4. TIM-3 is predominantly expressed on various immune cells, including T cells, dendritic cells, natural killer cells, and macrophages.
