This antibody PR-6A recognizes the Human Progesterone Receptor in the C-terminal ligand-binding domain. Therefore, it recognizes isoforms A and B. Antigen Distribution: Nuclear hormone receptor, widely expressed.
Cross-Reactivity (Details)
Species reactivity (expected):Chicken and Rabbit. Species reactivity (tested):Human, Pig.
The progesterone receptor is an intracellular steroid receptor that specifically binds progesterone. Expressed by a single gene (chromosome 11q22), it has two main forms, A and B, that differ in their molecular weight. It has been proposed that expression of PR determination indicates a responsive estrogen receptor (ER) pathway, and therefore, may predict likely response to endocrine therapy in human breast cancer. A number of studies have shown that PR determination provides supplementary information to ER, in predicting response to endocrine therapy as well as estimating survival. PR has proved superior to ER as a prognostic indicator in some studies. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues.Synonyms: NR3C3, Nuclear Receptor Subfamily 3 Group C Member 3, PGR, PR