Anti-Erb antibodies are used in antigen-specific immunodetection in biological samples. The target Erb is a known alias name of the protein estrogen receptor 2, encoded by the ESR2 gene in humans. This 530-amino acid residue protein is known to be involved in cell to cell signaling and the regulation of cell growth, among other biological processes. It is localized to the nucleus of the cell and features phosphorylated post-translational modifications. It is reported to be expressed in the adrenal gland. Other synonyms for Erb include ER-BETA, ER-BETA, and ESR-BETA. Western Blot is the most common application for the Erb antibodies listed below. ELISA and Immunohistochemistry are also common applications.