A Comparison of Transcriptional Activation by ER Alpha and ER Beta

Overview

Journal J Steroid Biochem Mol Biol

Specialties Biochemistry
Molecular Biology

Date 1999 Jul 27

PMID 10418990

Citations 59

Authors

S M Cowley

M G Parker

Affiliations

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Abstract

We have compared the ability of ER alpha and ER beta to stimulate transcription from a number of reporter genes in different cell lines and demonstrate that the activity of AF1 in ER beta is negligible compared with that of ER alpha on ERE based reporters. The activity of AF2 in ER alpha and ER beta is similar and this is likely to reflect their similar ability to bind coactivators. As a consequence, when transcription from a gene depends on both AF1 and AF2 the activity of ER alpha greatly exceeds that of ER beta but when AF1 is not required ER alpha and ER beta have similar transcriptional activities.

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