Abstract.
This review aims to evaluate the impact that human estrogen receptor-α (ER-α) synthesis, modification and degradation has on estrogen-dependant physiological and pathological processes within the body. Estrogen signaling is transduced through estrogen receptors, which act as ligand-inducible transcription factors. The significance of different isoforms of ER-α that lack structural features of full-length ER-α are discussed. The influence of differential promoter usage on the amount and isoform of ER-α within individual cell types is also reviewed. Moreover, the potential role of phosphorylation, ubiquitination and acetylation in the function and dynamic turnover of ER-α is presented.
Keywords: Key words. Estrogen receptor-α; regulation; splicing; isoform; tissue specificity; proteasome, post-translational modification; ubiquitination; phosphorylation; acetylation.
Footnotes
Received 12 February 2002; accepted 14 March 2002