LFS1 is a reported alias of the human protein 'tumor protein p53', encoded by the gene TP53. Anti-LFS1 antibodies are available from several suppliers. The full protein is reported to be 393 amino acid residues in length. Based on antigen name, there may be canine, porcine, monkey, mouse and rat variants of this protein. The LFS1 antigen is a documented cancer marker. See the antibody supplier page for important details, including specific immunogenicity and validated applications.