The BARR2 ELISA kits listed below are analytical tools for measuring concentrations of BARR2 in various samples. BARR2 is an alternative name for the human ARRB2 gene, which encodes the protein, arrestin beta 2. It has been mentioned that BARR2 plays a role in brain development and the regulation of apoptosis, among other functions. Structurally, the ARRB2 protein is 409 amino acid residues in length and 46.1 kilodaltons in mass. However, as many as 5 protein isoforms have been identified. It is localized to the cell membrane, nucleus, cytoplasmic vesicles, and cytoplasm of the cell. This protein is known to be ubiquitinated and phosphorylated. Other names for this target antigen include ARB2, ARB2, and ARR2. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.