These HER4 ELISA kits are immunodetection tools for measuring the levels of HER4 in biological samples. HER4 is an alias of the human ERBB4 gene, which encodes the protein, erb-b2 receptor tyrosine kinase 4. Notably, HER4 is known to play a role in cell migration, among other functions. The ERBB4 protein is 1308 amino acid residues in length and 146.8 kilodaltons in mass. However, as many as 4 protein isoforms have been identified. It is localized to the cell membrane of the cell. In terms of tissue specificity, it is reported be expressed at highest levels in the brain, heart, kidney, in addition to skeletal muscle, parathyroid, cerebellum, pituitary, spleen, testis and breast. This protein is known to be glycosylated, ubiquitinated, cleaved and phosphorylated. Other names for this target antigen include ALS19. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.