These SAP90 ELISA kits are immunodetection tools for measuring the levels of SAP90 in biological samples. SAP90 is an alias of the human DLG4 gene, which encodes the protein, discs large MAGUK scaffold protein 4. Notably, SAP90 is known to play a role in nervous system development and chemical synaptic transmission, among other functions. The DLG4 protein is 724 amino acid residues in length and 80.5 kilodaltons in mass. However, as many as 3 protein isoforms have been identified. It is localized to the cell membrane and cytoplasm of the cell. In terms of tissue specificity, it is notably expressed in the brain. This protein is known to be ubiquitinated and palmitoylated. Other names for this target antigen include MRD62, PSD95, and SAP-90. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.