These ZO-3 ELISA kits are immunodetection tools for measuring the levels of ZO-3 in biological samples. ZO-3 is an alias of the human TJP3 gene, which encodes the protein, tight junction protein 3. Notably, ZO-3 is known to play a role in cell adhesion, among other functions. The TJP3 protein is 919 amino acid residues in length and 101.4 kilodaltons in mass. However, as many as 4 protein isoforms have been identified. It is localized to the nucleus and cell membrane of the cell. This protein is known to be phosphorylated. Other names for this target antigen include ZO-3. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.