Anti-CHKA antibodies are used in the immunodetection of the protein choline kinase alpha. In humans, the canonical protein has a reported length of 457 amino acid residues and a mass of 52.2 kDa. Its subcellular localization is in the cytoplasm. Up to 2 different isoforms have been reported for this protein. It is notably expressed in many tissues, such as the bronchus and cervix. A member of the Choline/ethanolamine kinase protein family, CHKA is known to play an important role in phospholipid biosynthesis by catalyzing the phosphorylation of free choline to phosphocholine, the first step in phosphatidylcholine biosynthesis. Synonyms for this target antigen include CHK and CK. CHKA gene orthologs have been reported in the mouse, rat, bovine, zebrafish, chimpanzee and chicken species. A number of CHKA antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.