AU is a reported alias of the human protein 'basal cell adhesion molecule (Lutheran blood group)', encoded by the gene BCAM. Anti-AU antibodies are available from several suppliers. The full protein is reported to be 628 amino acid residues in length. Based on antigen name, there may be canine, porcine, monkey, mouse and rat variants of this protein. See the antibody supplier page for important details, including specific immunogenicity and validated applications.