Tissue Distribution and Quantitative Analysis of Estrogen Receptor-α (ERα) and Estrogen Receptor-β (ERβ) Messenger Ribonucleic Acid in the Wild-Type and ERα-Knockout Mouse

Abstract excerpt

Until recently, only a single type of estrogen receptor (ER) was thought to exist and mediate the genomic effects of the hormone 17beta-estradiol in mammalian tissues. However, the cloning of a gene encoding a second type of ER, termed ERbeta, from the mouse, rat, and human has prompted a reevaluation of the estrogen signaling system. Based on in vitro studies, the ERbeta protein binds estradiol with an affinity...

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