östrogenreceptorn
The estrogen receptor is a protein that belongs to the nuclear receptor superfamily. It acts as a receptor for the steroid hormone estrogen. When estrogen binds to the estrogen receptor, it triggers a conformational change in the receptor, allowing it to interact with DNA. This interaction can either activate or repress gene transcription, influencing a wide range of physiological processes. Estrogen receptors are found in various tissues throughout the body, including the reproductive organs, bones, brain, and cardiovascular system. There are two main subtypes of estrogen receptors: estrogen receptor alpha (ERα) and estrogen receptor beta (ERβ). While both bind estrogen, they have distinct tissue distribution patterns and mediate different cellular responses. The estrogen receptor plays a crucial role in sexual development, reproduction, bone metabolism, and cardiovascular health. Dysfunction or altered expression of estrogen receptors has been implicated in various diseases, including breast cancer, osteoporosis, and certain neurological disorders. This makes the estrogen receptor a significant target for therapeutic interventions in a variety of medical conditions. Research continues to explore the complex roles of estrogen receptors and their therapeutic potential.