Catalog # 10045
Breast cancer, Estrogen receptor (SP1)
Species reactivity: Human. Others not tested.
Description: This antibody recognizes a protein of 67kDa, which is identified as estrogen receptor (ER). It stains the nucleus of epithelial cells in breast carcinomas. The ER is an important regulator of growth and differentiation in the mammary gland. Presence of ER in breast tumors indicates an increased likelihood of response to anti-estrogen (e.g. tamoxifen) therapy.