Anti-GSTK1 antibodies are used in the immunodetection of the protein glutathione S-transferase kappa 1. In humans, the canonical protein has a reported length of 226 amino acid residues and a mass of 25.5 kDa. Its subcellular localization is in the peroxisomes. Up to 4 different isoforms have been reported for this protein. It is ubiquitously expressed across many tissue types. A member of the Kappa protein family, GSTK1 is reported to be a glutathione s-transferase that catalyzes the conjugation of glutathione to exogenous and endogenous compounds. Synonyms for this target antigen include glutathione S-transferase k1, glutathione S-transferase subunit 13 homolog, and GST class-kappa. GSTK1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of GSTK1 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.