Anti-pantothenate kinase 4 (inactive) antibodies are used for the immunodetection of the protein encoded by the PANK4 gene. In humans, the canonical protein has a reported length of 773 amino acid residues and a mass of 86 kDa. Its subcellular localization is in the cytoplasm. It is reported to be widely expressed with high expression in the muscle. It is a member of the Type II pantothenate kinase protein family; Damage-control phosphatase protein family. The gene encoding this protein is implicated in Cataracts. Other names for this target antigen include 4'-phosphopantetheine phosphatase, inactive pantothenic acid kinase 4, pantothenic acid kinase 4, and CTRCT49. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.