Estrogen receptor

Estrogen receptor is a group of proteins found inside cells. They are receptors that are activated by the hormone estrogen (estrogen). There are two types of estrogen receptors, ER-alpha and ER-beta, each encoded by a separate gene (gene).

Function

Estrogen receptors are activated by the hormone estrogen. Upon activation, the receptors become capable of binding to specific regions of DNA and regulate gene expression (gene expression). This regulation of gene expression by estrogen receptor is crucial for the development and functioning of the reproductive system (reproductive system).

Structure

Estrogen receptors are made up of several domains, including a DNA-binding domain and a ligand binding domain. The DNA-binding domain is responsible for binding to specific sequences of DNA called estrogen response elements (EREs), while the ligand binding domain binds to the hormone estrogen.

Role in disease

Alterations in the function or expression of estrogen receptors can lead to a variety of diseases. For example, mutations in the genes encoding for estrogen receptors can lead to resistance to hormone therapy in breast cancer (breast cancer). Additionally, overexpression of estrogen receptors is often associated with a poor prognosis in breast cancer.

See also

• Hormone receptor
• Breast cancer
• Gene expression
• Reproductive system

References

Estrogen receptor Resources
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