These ZO-1 ELISA kits are immunodetection tools for measuring the levels of ZO-1 in biological samples. ZO-1 is an alias of the human TJP1 gene, which encodes the protein, tight junction protein 1. Notably, ZO-1 is known to play a role in cell adhesion and cytoskeleton organization, among other functions. The TJP1 protein is 1748 amino acid residues in length and 195.5 kilodaltons in mass. However, as many as 2 protein isoforms have been identified. It is localized to the cell membrane of the cell. This protein is known to be phosphorylated. Other names for this target antigen include tight junction protein ZO-1. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.