Description
The Estrogen receptor is a ~ 67kDa protein. The estrogen receptor gene consists of more than 140kb of genomic DNA divided into 8 exons, being translated into a protein with six functionally discrete domains, labeled A through F. Many investigators have reported on the isolation of cDNAs which encode variant ER sequences. Estrogen receptors (ER) are members of the steroid/thyroid hormone receptor superfamily of ligandactivated transcription factors.