The E51 ELISA kits listed below are analytical tools for measuring concentrations of E51 in various samples. E51 is an alternative name for the human PSEN2 gene, which encodes the protein, presenilin 2. It has been mentioned that E51 plays a role in the transport of ions and intracellular signal transduction, among other functions. Structurally, the PSEN2 protein is 448 amino acid residues in length and 50.1 kilodaltons in mass. However, as many as 3 protein isoforms have been identified. It is localized to the ER and golgi of the cell. This protein is known to be cleaved and phosphorylated. Other names for this target antigen include AD3L, AD4, and CMD1V. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.