| Description | ESR1 is an estrogen receptor, a ligand-activated transcription factor composed of several domains important for hormone binding, DNA binding, and activation of transcription. The protein localizes to the nucleus where it may form a homodimer or a heterodimer with estrogen receptor 2. Estrogen and its receptors are essential for sexual development and reproductive function, but also play a role in other tissues such as bone. Estrogen receptors are also involved in pathological processes including breast cancer, endometrial cancer, and osteoporosis. Alternative splicing results in several transcript variants, which differ in their 5' UTRs and use different promoters. Synonyms: Polyclonal ESR1 antibody, Anti-ESR1 antibody, estrogen receptor 1 antibody, DKFZp686N23123 antibody, ER antibody, ESR antibody, ESRA antibody, Era antibody, NR3A1 antibody. |