The tax ELISA kits listed below are analytical tools for measuring concentrations of tax in various samples. tax is an alternative name for the human CNTN2 gene, which encodes the protein, contactin 2. It has been mentioned that tax plays a role in axon guidance and cell adhesion, among other functions. Structurally, the CNTN2 protein is described to be 1040 amino acid residues in length and 113.4 kilodaltons in mass. It is localized to the cell membrane of the cell. This protein is known to be glycosylated. Other names for this target antigen include AXT, FAME5, and TAG-1. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.