These Zep-1 ELISA kits are immunodetection tools for measuring the levels of Zep-1 in biological samples. Zep-1 is an alias of the human RREB1 gene, which encodes the protein, ras responsive element binding protein 1. Notably, Zep-1 is known to play a role in the regulation of transcription and brown fat cell differentiation, among other functions. The RREB1 protein is 1687 amino acid residues in length and 181.4 kilodaltons in mass. However, as many as 6 protein isoforms have been identified. It is localized to the nucleus of the cell. In terms of tissue specificity, it is found to be expressed in heart, placenta, lung, liver, skeletal muscle, kidney and pancreas. Other names for this target antigen include FINB, HNT, and LZ321. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.