Epigenetics meets estrogen receptor: Regulation of estrogen receptor by direct lysine methylation

Qun Zhou, Patrick G. Shaw, Nancy E. Davidson

Research output: Contribution to journalArticle

Abstract

The nuclear hormone receptor estrogen receptor α (ERα) promotes cellular growth through ligand-dependent activation of specific target genes, a process which is targeted in the treatment of ERα-expressing breast cancers. ERα activity is regulated at the protein level by post-translational modifications including phosphorylation and acetylation. A study now shows that ERα can also be directly methylated at lysine 302 (K302) by SET7, a histone methyltransferase that is known to monomethylate H3K4 and is associated with transcriptional activation. It was shown that K302 methylation stabilizes ERα protein and is suggested to increase sensitivity of ERα to estrogens, enhancing transcription of estrogen response elements. Furthermore, SET7 methylation of K302 is enhanced by a breast cancer-associated mutation at K303 (K303R) in vitro. These findings provide an additional mechanism of SET7 mediated transcriptional activation, as well as potential insight into the complex regulation of ERα stability and ligand sensitivity.

Original languageEnglish (US)
Pages (from-to)319-323
Number of pages5
JournalEndocrine-Related Cancer
Volume16
Issue number2
DOIs
Publication statusPublished - Jun 2009

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ASJC Scopus subject areas

  • Endocrinology
  • Oncology
  • Cancer Research
  • Endocrinology, Diabetes and Metabolism

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