Thy 1 is a reported alias of the human protein 'Thy-1 cell surface antigen', encoded by the gene THY1. Anti-Thy 1 antibodies are available from several suppliers. The full protein is reported to be 161 amino acid residues in length. Based on antigen name, there may be canine, porcine, monkey, mouse and rat variants of this protein. The Thy 1 antigen is a documented cancer, mesenchymal and hematopoeietic stem cell marker. See the antibody supplier page for important details, including specific immunogenicity and validated applications.