RARγ, or Retinoic Acid Receptor Gamma, is a type of nuclear receptor that plays a crucial role in regulating gene expression. It is activated by retinoic acid, a derivative of vitamin A, and is involved in various biological processes, including development, immune function, and metabolism. RARγ is particularly important in the differentiation of certain cell types, such as neurons and immune cells. This receptor is part of the retinoic acid receptor family, which includes RARα and RARβ. RARγ is expressed in various tissues, including the brain and skin, and its dysfunction has been linked to several diseases, including cancer and autoimmune disorders. Understanding RARγ's functions can provide insights into potential therapeutic targets for these conditions.