The ER α/ESR1 protein is a nuclear receptor that plays a critical regulatory role in gene expression, affecting cell proliferation and differentiation. Ligand-dependent transactivation involves binding of homodimers to estrogen response elements or association with transcription factors. ER alpha/ESR1 Protein, Human (His) is the recombinant human-derived ER alpha/ESR1 protein, expressed by E. coli , with N-6*His labeled tag.
