Anti-WNK4 antibodies are used in the immunodetection of the protein WNK lysine deficient protein kinase 4. In humans, the canonical protein has a reported length of 1243 amino acid residues and a mass of 134.7 kDa. Its subcellular localization is in the cell junctions. Up to 3 different isoforms have been reported for this protein. It is reported to be expressed in the kidney, colon and skin. A member of the Ser/Thr protein kinase protein family, WNK4 is known to be a serine/threonine kinase that plays an important role in the regulation of electrolyte homeostasis, cell signaling, survival and proliferation. Post-translational modifications have been described, including ubiquitination and phosphorylation. Synonyms for this target antigen include protein kinase lysine-deficient 4, protein kinase with no lysine 4, and serine/threonine-protein kinase WNK4. WNK4 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of WNK4 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.