Nuclear hormone receptor with other cellular proteins

This chapter reviews the main characteristics of two of the better known members of the nuclear hormone receptor family estrogen receptors a and ft (ERa and ER/i). First, the different functional regions harbored by the molecule of the receptor are described. These properties will be used to describe the cellular, molecular, and other consequences that derive from the interactions of receptors with their own hormone, other proteins, or DNA. 

With the availability of labeled hormones of high specific activity and the application of the principles of affinity chromatography, researchers were able to isolate cellular proteins that bind to plant hormones in vitro. Such proteins have been referred to as receptor proteins, binding proteins, or acceptor proteins. Tacit in the concept of hormone receptor proteins is the stereo-specific interaction of the hormone and the receptor protein (19). The resulting hormone-protein complex participates in growth processes that depend on new or enhanced protein synthesis. Advances in molecular biology and related sciences have enabled many researchers to study the role of receptors in the control of nuclear functions or other activities and to determine the site of primary hormonal action. 

---