Anti-CEP19 antibodies are used in the immunodetection of the protein centrosomal protein 19. In humans, the canonical protein has a reported length of 163 amino acid residues and a mass of 19.2 kDa. Its subcellular localization is in the cytoplasm. A member of a the CEP19 protein family, CEP19 is known to be required for ciliation. Synonyms for this target antigen include centrosomal protein of 19 kDa and centrosomal protein 19kDa.