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Related Experiment Videos

Estrogen receptor phosphorylation.

Deborah A Lannigan1

  • 1Center for Cell Signaling, Health Sciences Center, University of Virginia, Hospital West, Room 7041, Box 800577, Charlottesville, VA 22908-0577, USA. dal5f@virginia.edu

Steroids
|December 12, 2002
PubMed
Summary
This summary is machine-generated.

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Estrogen receptor alpha (ERalpha) phosphorylation sites, including Ser-118, Ser-104, Ser-106, Ser-167, and Ser-236, are detailed. This review discusses responsible kinases and the functional importance of ERalpha phosphorylation.

Area of Science:

  • Molecular Endocrinology
  • Cell Signaling

Background:

  • Estrogen receptor alpha (ERalpha) is a key regulator of gene expression.
  • ERalpha activity is modulated by post-translational modifications, particularly phosphorylation.
  • Specific phosphorylation sites on ERalpha influence its function.

Purpose of the Study:

  • To review the known phosphorylation sites on Estrogen receptor alpha (ERalpha).
  • To identify the kinases responsible for ERalpha phosphorylation.
  • To discuss the functional significance of ERalpha phosphorylation.

Main Methods:

  • Literature review of studies investigating ERalpha phosphorylation.
  • Analysis of phosphorylation sites in response to different signaling pathways (estradiol, MAPK, PKA).
  • Examination of evidence for tyrosine phosphorylation at Tyr-537.

Related Experiment Videos

Main Results:

  • ERalpha is phosphorylated at multiple serine residues (Ser-118, Ser-104, Ser-106, Ser-167, Ser-236) in response to various stimuli.
  • Phosphorylation sites Ser-118, Ser-104, Ser-106, and Ser-167 are located in the N-terminal activation function 1 region.
  • Ser-236 phosphorylation occurs in the DNA-binding domain, and Tyr-537 phosphorylation is debated.

Conclusions:

  • ERalpha phosphorylation is a complex regulatory mechanism.
  • Different signaling pathways target distinct ERalpha phosphorylation sites.
  • Understanding ERalpha phosphorylation is crucial for comprehending its role in cellular processes.