Anti-T-box transcription factor 19 antibodies are used for the immunodetection of the protein encoded by the TBX19 gene. In humans, the canonical protein has a reported length of 448 amino acid residues and a mass of 48.2 kDa. Its subcellular localization is in the nucleus. It is a reported transcriptional regulator involved in developmental processes. The gene encoding this protein is implicated in ACTH deficiency. Other names for this target antigen include TPIT, dJ747L4.1, T-box transcription factor TBX19, T-box 19, T-box factor, pituitary, and TBS19. Gene orthologs have been identified in the mouse, rat, bovine, chimpanzee and chicken species.