It is well established that estrogens elicit a variety of rapid effects in many
tissues in addition to their actions on gene expression in the cell nucleus after Estrogen
Receptors (ERs) dimerization and DNA-binding through their EREs. In this chapter we
describe tissue distribution, subcellular localization, targets and roles of classical and
non-classical ERs.
Keywords: Estrogen Receptor, ER α and β, Golgi, Mitochondria, Subcellular
Localization.