TBPA is a reported alias of the human protein 'transthyretin', encoded by the gene TTR. Anti-TBPA antibodies are available from several suppliers. The full protein is reported to be 147 amino acid residues in length. Based on antigen name, there may be canine, porcine, monkey, mouse and rat variants of this protein. The TBPA antigen is a documented cancer marker. See the antibody supplier page for important details, including specific immunogenicity and validated applications.