Anti-PYK antibodies are used in antigen-specific immunodetection in biological samples. The target PYK is a known alias name of the protein phosphorylase kinase regulatory subunit alpha 2, encoded by the PHKA2 gene in humans. This 1235-amino acid residue protein is known to be involved in carbohydrate metabolism and homeostasis, among other biological processes. It is localized to the cell membrane of the cell. In terms of tissue expression, it is reported to be highly expressed in the liver and other non-muscle tissues. Other synonyms for PYK include GSD9A and PHK. ELISA and Western Blot are common applications for PYK antibodies.