These E2-2 ELISA kits are immunodetection tools for measuring the levels of E2-2 in biological samples. E2-2 is an alias of the human TCF4 gene, which encodes the protein, transcription factor 4. Notably, E2-2 is known to play a role in cell differentiation and nervous system development, among other functions. The TCF4 protein is 667 amino acid residues in length and 71.3 kilodaltons in mass. However, as many as 16 protein isoforms have been identified. It is localized to the nucleus of the cell. In terms of tissue specificity, it is reported to be expressed in adult heart, brain, placenta, skeletal muscle and to a lesser extent in the lung. Other names for this target antigen include CDG2T and FCD2. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.